Extensions

Extension Overview

An extension is a short internal number. Extensions allow users to make and receive calls. You can assign extensions to every employee in your organization.

Extension types

Yeastar S-Series VoIP PBX supports the following types of extension:

SIP Extension

A SIP extension is based on SIP protocol.

To use a SIP extension, you need to enter the extension credentials on an IP phone or a softphone. After the extension is registered on a phone, you can make and receive calls.

IAX Extension

An IAX extension is based on IAX protocol.

To use an IAX extension, you need to enter the extension credentials on an IP phone or a softphone. After the extension is registered on a phone, you can make and receive calls.

FXS Extension

An FXS extension is associated with an analog phone or a fax machine. To use an FXS extension, you need to connect an analog phone or a fax machine to the FXS port of the PBX, and assign an extension number to the analog phone or fax machine.

Extension format

Yeastar S-Series VoIP PBX supports 1-digit to 7-digit extension format. The default extension format is 4-digit number.

Before you create extensions, you can go to Settings > PBX > General > Preferences > Extension Preferences > User Extension to change the extension format and range.

Extension Creation Overview

Yeastar S-Series VoIP PBX supports to set one extension number to multiple extension types, such as SIP extension, IAX extension, and FXS extension, so that you can use the same extension number on devices in different locations.

Set one extension number for multiple devices

You can link your office phone, softphone, and analog phone through a universal extension number. When a call reaches the extension number, all phones will ring simultaneously, you won't miss any business calls.

On extension configuration page, you can select multiple types for the extension.

SIP Forking

Yeastar S-Series VoIP PBX supports SIP forking, which enables an extension number to be registered by multiple SIP phones. When a call reaches the extension, all registered phones will ring simultaneously, and you can take the call from any device easily.

You can configure SIP Forking on the extension configuration page. The value of Concurrent Registrations limits how many SIP phones the extension can be registered on.

• By default, if one SIP phone is busy, other SIP phones still can receive calls when calls reach the extension. To restrict other phones from receiving calls when the extension is busy, you can enable All Busy Mode for SIP Forking (Settings > PBX > General > SIP > Advanced).

Create a SIP Extension

Yeastar S-Series VoIP PBX supports Session Initiation Protocol (SIP). SIP is used in VoIP communications allowing users to make and receive voice calls for free over the Internet. Before registering a SIP account on phones, you need to create a SIP account.

Procedure

1. Go to Settings > PBX > Extensions, click Add.
2. On the Basic page, go to General section, and set the general settings of the extension.

• Type: Select the checkbox of SIP.
• Extension: Enter the extension number.
• Caller ID: Enter the caller ID number. The called party will see this caller ID number when the extension user makes an outgoing call.
• Caller ID name: Enter the caller ID name. The called party will see this caller ID name when the extension user makes an outgoing call.
• Emergency Outbound Caller ID: Enter the outbound caller ID for emergency calls. The PSAP (Public Safety Answering Point) can pinpoint the user's location based on the caller ID.Note: The setting takes effect only when the extension uses enhanced emergency calling. You don't have to configure the option if the extension uses basic emergency calling.
• Registration Name: The name used to register a SIP extension.
• Registration Password: The password is used to register the extension.
• Concurrent Registrations: Yeastar S-Series VoIP PBX supports to register one SIP extension number on multiple phones. When a call reaches the extension number, all phones will ring. The maximum number of concurrent registrations is 5.

3. On the Basic page, go to User Information section, and set the user information.

• Email: Extension user can reset his/her login password, receive voice mails, faxes, or PBX notifications via this email address.
• User Password: The password is used to log in the PBX or log in Linkus client. The password is generated randomly by default.
• Prompt Language: The language of voice prompts. The default prompt language is the same as the system language. If the extension user speaks foreign language, you can set a specific system prompt.Note: Before selecting other system prompts, go to Settings > PBX > Voice Prompts > System Prompt to download online prompts.
• Mobile Number: Extension user can receive the PBX notifications or forwarded calls on this mobile number.

4. Click Presence, Features, Advanced, or Call Permission tab to configure other settings.

4. Click Save and Apply.

Create an IAX Extension

Yeastar S-Series VoIP PBX supports Inter-Asterisk Exchange (IAX) protocol. IAX is used for transporting VoIP telephony sessions between servers and terminal devices. Before registering an IAX account on phones, you need to create an IAX account.

Prerequisites

Only few phones support IAX protocol, we recommend that you use SIP extensions.

Procedure

1. Go to Settings > PBX > Extensions, click Add.
2. On the Basic page, go to General section, and set the general settings of the extension.

• Type: Select the checkbox of IAX.
• Extension: Enter the extension number.
• Caller ID: Enter the caller ID number. The called party will see this caller ID number when the extension user makes an outgoing call.
• Caller ID name: Enter the caller ID name. The called party will see this caller ID name when the extension user makes an outgoing call.
• Emergency Outbound Caller ID: Enter the outbound caller ID for emergency calls. The PSAP (Public Safety Answering Point) can pinpoint the user's location based on the caller ID.Note: The setting takes effect only when the extension uses enhanced emergency calling. You don't have to configure the option if the extension uses basic emergency calling.
• Registration Password: The password is used to register the extension.

3. On the Basic page, go to User Information section, and set the user information.

• Email: Extension user can reset his/her login password, receive voice mails, faxes, or PBX notifications via this email address.
• User Password: Extension user can log in the PBX or log in Linkus mobile client by the user password.
• Prompt Language: The language of voice prompts. The default prompt language is the same as the system language. If the extension user speaks foreign language, you can set a specific system prompt.Note: Before selecting other system prompts, go to Settings > PBX > Voice Prompts > System Prompt to download online prompts.
• Mobile Number: Extension user can receive the PBX notifications or forwarded calls on this mobile number.

4. Click Presence, Features, Advanced, or Call Permission tab to configure other settings.

5. Click Save and Apply.

Create an FXS Extension

Yeastar S-Series VoIP PBX supports Foreign Exchange Station (FXS) interface. You can add an FXS extension when you need to connect analog phones or fax machines to the FXS ports of Yeastar S-Series VoIP PBX.

Prerequisites

Install an S2 module or SO module on the PBX, then connect an analog phone or fax machine to the FXS port.

Procedure

1. Go to Settings > PBX > Extensions, click Add.
2. On the Basic page, go to General section, and set the general settings of the extension.

• Type: Select checkbox of FXS and select an FXS port.
• Extension: Enter the extension number.
• Caller ID: Enter the caller ID number. The called party will see this caller ID number when the extension user makes an outgoing call.
• Caller ID Name: Enter the caller ID name. The called party will see this caller ID name when the extension user makes an outgoing call.
• Emergency Outbound Caller ID: Enter the outbound caller ID for emergency calls. The PSAP (Public Safety Answering Point) can pinpoint the user's location based on the caller ID.Note: The setting takes effect only when the extension uses enhanced emergency calling. You don't have to configure the option if the extension uses basic emergency calling.

3. On the Basic page, go to User Information section, and set the user information.

• Email: Extension user can reset his/her login password, receive voice mails, faxes, or PBX notifications via this email address.
• User Password: Extension user can log in the PBX or log in Linkus client by the user password.
• Prompt Language: The language of voice prompts. The default prompt language is the same as the system language. If the extension user speaks foreign language, you can set a specific system prompt.Note: Before selecting other system prompts, go to Settings > PBX > Voice Prompts > System Prompt to download online prompts.
• Mobile Number: Extension user can receive the PBX notifications or forwarded calls on this mobile number.

4. Click Presence, Features, Advanced, or Call Permission tab to configure other settings.

5. Click Save and Apply.

Bulk Create Extensions

Yeastar S-Series VoIP PBX supports to add SIP extensions and IAX extensions in bulk.

Procedure

1. Go to Settings > PBX > Extensions, click Bulk Add.
2. On the Basic page, go to General section, and configure the following settings:Note:

• A random Registration Password and a random User Password will be assigned for each extension.
• If you want to edit the Registration Password and User Password for multiple extensions, you need to go to Settings > System > Security > Service, select the checkbox of Allow Weak Password.

• Type: Select the extension type.
• Start Extension: Enter the first extension number. The system will create extensions in bulk starting with the extension number.
• Create Number: Enter the number of extensions that will be created.
• Emergency Outbound Caller ID: Enter the outbound caller ID for emergency calls. The PSAP (Public Safety Answering Point) can pinpoint the user's location based on the caller ID.Note: The setting takes effect only when the extension uses enhanced emergency calling. You don't have to configure the option if the extension uses basic emergency calling.
• Concurrent Registrations: Yeastar S-Series VoIP PBX supports to register one extension number on multiple phones. When a call reaches the extension number, all phones will ring.
• Prompt Language: The language of voice prompts. The default prompt language is the same as the system language. If the extension user speaks foreign language, you can set a specific system prompt.Note: Before selecting other system prompts, go to Settings > PBX > Voice Prompts > System Prompt to download online prompts.

3. Click Features, Advanced, or Call Permission tab to configure other settings.

4. Click Save and Apply.

Register Extensions

Register a SIP Extension

To make calls and receive calls from a SIP extension, you need to register the SIP extension on an IP phone or soft phone.

1.Gather information of extension registration

For most SIP phones, the following items are needed for the SIP phone to register with Yeastar S-Series VoIP PBX.

• IP address or domain name of PBX
• SIP registration port: The default port is 5060 on Yeastar S-Series VoIP PBX.
• Extension information
• Extension Number
• Registration Name
• Registration Password
• Caller ID Name
• Transport

2.Register the extension on a phone

Log in the phone web interface, fill in and save the required items to register the SIP extension.

3.Confirm registration status

You can do one of the followings to check if the extension is registered.

• On the phone web interface, check if the status indicates that the extension is registered.
• Log in PBX web interface, go to PBX Monitor > Extensions to check if the status shows

.

Register an IAX Extension

To make calls and receive calls from an IAX extension, you need to register the IAX extension on an IP phone or soft phone.Note: Only few phones support IAX protocol, we recommend that you use SIP extensions.

In this topic, we take Zoiper softphone for example to introduce how to register an IAX extension.

1.Gather information of extension registration

For most IAX phones, the following items are needed for the IAX phone to register with Yeastar S-Series VoIP PBX.

• IP address of PBX (e.g.192.168.5.30)
• Extension information
• Extension (e.g.1000)
• Registration Password (e.g. Yeastar6041)
• Caller ID (e.g.1000)
• Caller ID name (e.g.Ann)

2.Register the extension on Zoiper

1. Run Zoiper.exe, go to

> IAX accounts > Add new IAX account.

1. In the Add new IAX account window, enter the extension number 1000, and click OK.
2. In the IAX account options, enter the required items as follows.

• Server Hostname/IP: 192.168.5.30
• Username: 1000
• Password: Yeastar6041
• Caller ID Name: Ann
• Caller ID Number: 1000

1. Click OK and Apply.

3.Confirm registration status

You can do one of the followings to check if the extension is registered..

• On the phone web interface, check if the status indicates that the extension is registered.In this example, the account will display "1000 (Registered) (IAX)".
• Log in PBX web interface, go to PBX Monitor > Extensions to check if the status shows

.

Register a Remote Extension via Public IP Address and Port

When you are out of the office, you can register a remote extension on a soft phone or on an IP phone.

As the following figure shows, PBX and the IP phone are in different network with their own private IP addresses.

1. Configure port forwarding on the router that is connected to the PBX.

Check the default ports that you need to map on the Router2 below, you can change the default ports on PBX > General > SIP.

• SIP Registration Port: UDP 5060
• RTP Port Range: UDP 10000-12000

2. Log in to PBX web interface, go to PBX > General > SIP > NAT, configure NAT settings according to your network environment.

3. Enable NAT and Register Remotely for the extension

Register the extension on the IP phone.

Manage Extensions

Change Extension Range

The default extension range is from 1000 to 5999. Before you create extensions, you can change the extension range according to your needs.

1. Log in PBX web interface, go to Settings > PBX > General > Preferences > Extension Preferences.
2. Change the range of User Extensions.
3. Click Save and Apply.

Edit Extensions

After creating extensions, you may need to change extension settings. You can edit an extension, or edit extensions in bulk.

Edit an Extension

1. Log in PBX web interface, go to Settings > PBX > Extensions.
2. On Extensions page, click

beside the extension that you want to edit.

1. Change extension settings according to your needs.
2. Click Save and Apply.

Bulk Edit Extensions

1. Log in PBX web interface, go to Settings > PBX > Extensions.
2. On Extensions tab, select the checkbox of desired extensions, and click Edit.
3. Change extension settings according to your needs.
4. Click Save and Apply.

Bulk Edit Extension Names and Emails

To bulk edit the extension names and emails, you need to export the extensions from Yeastar S-Series VoIP PBX first, edit the extension names and email addresses in the CSV file, then import the file to the PBX.

1. Log in PBX web interface, go to Settings > PBX > Extensions, click Export to export all the extensions.
2. Edit the CSV file, enter the users' names and email addresses, then save the file.

• fullname: Enter the user's name. The fullname stands for the Caller ID Name.
• email: Enter the user's email address.

3. Import the CSV file to the PBX.

• Go to Settings > PBX > Extensions, click Import.
• On the pop-up dialog, click Browse, select your CSV file.
• Click Import.

Note: You may get an error prompt like the following figure.

4. Click Yes to check the log.

Note: Ignore the error if the Error Cause displays "username[1000]: The imported record is existing, the record has been overwritten".

1. Check the imported extensions on your PBX.

Delete Extensions

When an employee leaves or an extension is no longer needed, you can delete the extension from the Yeastar S-Series VoIP PBX.

Delete an Extension

1. Log in PBX web interface, go to Settings > PBX > Extensions.
2. On Extensions page, click

beside the extension that you want to delete.

1. Click Save and Apply.

Bulk Delete Extensions

1. Log in PBX web interface, go to Settings > PBX > Extensions.
2. On Extensions page, select the checkbox of desired extensions, and click Delete.
3. Click Save and Apply.

Import/Export Extensions

The extensions configured on Yeastar S-Series VoIP PBX can be exported and saved as a template. You can fill in desired extension information and import the CSV file to PBX again.

Export Extensions

1. Log in PBX web interface, go to Settings > PBX > Extensions.
2. Click Export to export the extensions to a CSV file.

Import Extensions

Tip: You can export extensions first, and use the CSV file as a template.

1. Log in PBX web interface, go to Settings > PBX > Extensions.
2. Refer to the Import Parameters - Extensions, and edit your CSV file.
3. Click Import.
4. On the Import Extension page, click Browse to select your CSV file.
5. Click Import.

Extension Groups

Create an Extension Group

You can assign and categorize extensions in different groups. Extension groups simplify the configuration process.

1. Go to Settings > PBX > Extensions > Extension Group, click Add.
2. Set the Name to help you identify the group.
3. In the Available box, select the extensions to the Selected box.

1. Click Save and Apply.

Manage Extension Groups

Edit extension groups

You can edit the group name, add more extensions to the group or remove extensions from the group.

1. Go to Settings > PBX > Extensions, search and find the desired extension group, click

.

1. Edit the group as you need.
2. Click Save and Apply.

Delete extension group

1. Go to Settings > PBX > Extensions > Extension Group, search and find the desired extension group, click

.

1. Click Yes to confirm the deletion.

Extension Groups Application

You can use the extension groups when you need to assign extensions for outbound routes, ring groups, queues, etc.

For example, you need to set an outbound route and only allow the Support group members to make outbound calls through this route. You can simply assign the Support extension group instead of assigning an extension member one by one. It simplifies the configuration process.

Extension Presence

This topic introduces what is presence and how the presence status can benefit the user's work.

What is Presence

Extension Presence indicates the availability status of an extension. Presence settings are linked to the Call Forwarding rules and Linkus ring strategy. Different call forwarding rules and ring strategy can be set for each presence status.

Yeastar S-Series VoIP PBX provides five presence statuses:

• Available: The user is online and ready for communication.
• Away: The user is currently away from your office.
• DND: The user doesn't want to be disturb, and you won't receive any calls.
• Lunch Break: The user is currently on lunch break.
• On a Business Trip: The user is currently on a business trip.

How does Presence benefit the user's work?

Presence status and information that are displayed on Linkus clients allows the user to see the presence of your colleague and instantly know whether the colleague is available, busy, or away.

Change Presence status to quickly route incoming calls. For example, if the user is at a meeting and do not want to miss calls, set the status to Away and forward the call to voicemail. Once the user is ready to receive calls again, switch back to Available.

How to change Presence status?

3 ways to change an extension presence.

• On the Linkus client, extension users can change their own presence status.
• On the Extension Web Portal, Linkus users can change their own presence status.
• On the PBX Web Portal, you can change all extensions presence.

Set Call Forwarding Rules & Presence Status

Set call forwarding rules for each presence status. The call forwarding rules allows the user to automatically forward an incoming call to voicemail, another extension, or mobile depending on the extension status.

1. Go to Settings > PBX > Extensions, search and find the desired extension, click

.

1. Click the Presence tab.
2. In the Presence drop-down list, select a status to configure.
3. In the Presence Information field, enter the a custom status message to display on Linkus.The Linkus users can see whether you are available to communicate.
4. Set call forwarding rules for the Presence status.
5. Select the Call Forwarding conditions:

• Always: All the incoming calls will be forward to the destination.
• No Answer: Only the unanswered calls will be forwarded to the destination.
• When Busy: Only the calls that come in while you are talking on the phone will be forwarded.

1. Beside the selected forwarding condition, select the forwarding destination.
2. Set the ring strategy for the Presence status.

• Ring First: When a call reaches the extension, which terminal will ring first.
• Ring Secondly: If the incoming call is not answered on the terminals that are selected as Ring First, the terminals that are selected as Ring Secondly will ring.

1. Click Save and Apply.

Set Call Forwarding Prompt

By default, when the PBX is forwarding an incoming call to another number, the PBX will play the call forwarding prompt "please hold when I try to locate the person you are calling", and then play the MoH music when the caller is waiting. You can disable the call forwarding prompt and change the MoH music to a normal ring tone. In this way, the caller will not realize that the call is forwarded.

1. Go to Settings > PBX > Voice Prompts > Prompt Preference.
2. Unselect the checkbox of Play Call Forwarding Prompt.
3. In the Music on Hold for Call Forwarding drop-down list, select Ringing Tone.

1. Click Save and Apply.

Activate/Deactivate Call Forwarding

Extension users can dial the Call Forwarding feature codes on their phones to activate or deactivate Call Forwarding function.

Below are the default call forwarding feature codes and the description of how to use the feature codes.

Monitor Extension DND Status by BLF Keys

This topic takes a Yealink T53W IP phone as an example to introduce how to configure a BLF key on your phone to monitor the extension Do-Not-Disturb (DND) status.

Prerequisites

Before you start, you need to register the extension you want to monitor to an IP phone. For more information, see Register a SIP Extension.

Configure a BLF key to monitor the extension DND status

1. Log in to the IP phone web interface, go to Dsskey > Line Key.
2. Configure a BLF key to monitor the DND status of extension 1008.

• Type: Select BLF.
• Value: Enter {ext_num}. In this example, enter 1008.Note: {ext_num} stands for extension number.
• Line: Select the line where extension 1008 is registered on.

1. Click Confirm.

Results

• BLF LED on: The extension 1008 is being monitored.
• BLF LED off:The configuration is failed.

If the BLF key configuration is successful, when user dials the feature code to enable (default *74) or disable (default *074) the extension DND status, the BLF key will display different color to indicate different extension status.Note: The BLF LED will not be changed if users change the extension DND status on web page, on Linkus clients, or via API interface.

• Green BLF LED: The extension DND status is disabled and the extension is idle.
• Red BLF LED: The extension DND status is enabled, or the extension is busy.

Voicemail Overview

Yeastar S-Series VoIP PBX integrates a free voicemail system. Voicemail is a modern kind of answering machine that allows the callers to leave audio messages in case of unavailability.

Enable/Disable Voicemail Function

By default, the voicemail is enabled for all extension users. You can disable the Voicemail function if the user doesn't need it.

1. Go to Settings > PBX > Extensions, search and find the desired extension, click

.

1. Click the Presence tab.
2. Change the Voicemail settings.

• To enable voicemail, select the checkbox of Enable Voicemail.
• To disable voicemail, unselect the checkbox of Enable Voicemail.

1. Click Save and Apply.

Change Voicemail PIN/Password

Extension users can dial voicemail feature code (default *2) on their phones to access their voicemails. To enhance the extension security, you can change the voicemail PIN on PBX web interface.

1. Go to Settings > PBX > Extensions.
2. Search and find the desired extension, click

.

1. Click the Presence tab.
2. In the Voicemail Access PIN field, enter a numeric PIN/password.
3. Click Save and Apply.

Configure Voicemail to Email

The Voicemail to Email feature of Yeastar S-Series VoIP PBX allows extension users to receive voicemail audio files as email attachments and quicken response time when they are out of office.

Enable Voicemail to Email

Voicemail to Email function is disabled by default. If an extension user would like to check voicemail messages via email, you need to enable Voicemail to Email for his or her extension.Note: To receive voicemail via email successfully, make sure the system email works.

1. Go to Settings > PBX > Extensions, select the desired extension, click

.

1. Click the Features tab.
2. In the Send Voicemail to Email drop-down list, select an email type.

• Send to user's email: Send voicemail to the extension user's email address.
• Send to custom email: Send voicemail to a custom email address.

1. Click Save and Apply.

Email template of 'Voicemail to Email'

The PBX has a default email template for Voicemail to Email. You can edit the template according to your needs.

1. Go to Settings > System > Email > Email Templates, click

beside Voicemail to Email.

1. Edit the email subject and email contents.

1. Click Save and Apply.

Check Voicemail Messages

Extension users have multiple ways to check their voicemail messages.

Check Voicemail on Linkus

Log in Linkus, go to Me > Voicemail to check your voicemail.

Check Voicemail on a Phone

• Dial feature code *2 on a phoneA user can dial *2 on his own phone to check voicemail.
• Dial feature code *02 on a phoneA user can dial *02 on other user's phone to enter the voicemail main menu, then enter his/her extension number and voicemail PIN to check voicemail.

Check Voicemail on Web Page

Extension users can log in the PBX web page to check their own voicemails.

• User name: The extension user's email address.
• Password: The extension's User Password.

Check Voicemail via Email

If voicemail to email is enabled for an extension user, the user can check voicemails in his/her email box.

Check Voicemail via IVR

If you check the option Dial to Check Voicemail for an IVR; users can access the IVR to check their voicemails. This solution is for the users who are outside the office to check their voicemails.Tip: If the users are using Linkus, they can dial *2 directly to check their voicemails.

Change Voicemail Greetings

You can change the global voicemail greetings for all the extension users or change voicemail greeting for a specific extension.

Components of a voicemail greeting

When an extension user is unavailable, the voicemail greeting consists of 3 audio clips: Unavailable Prompt + Voicemail Prompt + "Di".

When an extension is busy on a phone, the voicemail greeting consists of 3 audio clips: Busy Prompt + Voicemail Prompt + "Di"

• Default Unavailable Prompt: The person at the extension XXXX is unavailable.
• Default Busy Prompt: The person at the extension XXXX is busy.
• Default Voicemail Prompt: Please leave your message after the tone, when done hang up or press the pound key (#)."

Change global voicemail greetings

1. Prepare your custom prompt files, and upload to the PBX.
2. Go to Settings > PBX > General > Voicemail > Greeting Options.
3. Change the global voicemail greetings.

• Max Greeting Length (s): Set the maximum time limit in seconds when recording greetings via voicemail. The default value is 60s.Valid values: 30, 60, 90, 120, 600.
• Busy Prompt: Select the prompt that will be played when the extension is busy.
• Unavailable Prompt: Select the prompt that will be played when the extension is unavailable.
• Voicemail Prompt: Select the prompt that will be played after Busy or Unavailable prompt.

1. Click Save and Apply.

To check the new voicemail greeting, extension users can dial feature code *2 to enter the voicemail menu, and follow the prompts to check greetings.

For more information, see Voicemail Menu.

Change voicemail greetings for a specific extension

By default, the global busy prompt and global unavailable prompt are applied to all extensions. If an extension user wants to use her/his personal greetings, you can change the prompts for the extension.

Note: The greeting prompt file format should be ".wav", ".WAV" or ".gsm" file.

The file size must not be larger than 8MB.

Supported Format: PCM: 8K, 16bit, 128kbps; A-law(g.711): 8k, 8bit, 64kbps; u-law (g.711): 8k, 8bit, 64kbps; gsm: 6.10, 8k, 13kbps.

1. Go to Settings > PBX > Extensions, search and find the desired extension, click

.

1. Click the Features tab.
   
2. Click Browse to upload a prompt file.

1. Click Save and Apply.

To check the new voicemail greeting, extension users can dial feature code *2 to enter the voicemail menu, and follow the prompts to check greetings.

For more information, see Voicemail Menu.

Manage Voicemail Messages Centrally

In Yeastar S-Series VoIP PBX, you have two options to manage voicemail messages centrally and efficiently: subscribe BLF keys on a phone to monitor multiple extensions' voicemail status and receive multiple extensions' voicemail messages from one mailbox.

Monitor voicemail status by BLF keys

By default, an extension's voicemail status cannot be monitored by other users. To monitor an extension's voicemail status, you need to enable Share Voicemail Status on the extension.

We take Yealink T27G v69.82.0.20 as an example below to introduce how to monitor voicemail status of extension 4000 by extension 1000.

1. Enable voicemail status sharing feature of extension 4000.
2. Log in the PBX web interface, go to Settings > PBX > Extensions, edit the extension 4000.
3. On the extension Features page, enable Share Voicemail Status.
   

1. Click Save and Apply.
2. Set BLF key to monitor the voicemail status.
3. Log in the IP phone where extension 1000 is registered, go to Dsskey.
4. Set a BLF key to monitor voicemail status of extension 4000.

• Type: Select BLF.
• Value: Enter *2{ext_num}. In this example, enter *24000.
• Line: Select the line where extension 1000 is registered on.

1. Click Confirm.

Result:

• Green BLF LED: The extension 4000 has NO unread voicemail messages.
• Red BLF LED: The extension 4000 has unread voicemail messages.

Receive voicemail from a mailbox

To receive multiple extensions' voicemail messages from one mailbox, you can configure sending voicemail to a same custom email address for these extensions.

For example, to receive multiple extensions' voicemail messages from the mailbox voicemial@yeastar.com. Set Send Voicemail to Email to the same custom email address voicemial@yeastar.com for these extensions.

Global Voicemail Settings

You can change the global voicemail message settings, voicemail playback settings according to your needs.

The global voicemail settings will be applied to all the extensions.

Navigation path: Settings > PBX > General > Voicemail.

Voicemail Menu

Extension users can dial *2 on your phone to access the voicemail menu. Below is the detailed voicemail menu.

Mobility Extension

Yeastar Mobility Extension allows you to stay in contact with colleagues and clients using either office phone or mobile phone with the same extension number.

Scenarios

When you're out of office or on a business trip, the mobility extension allows your mobile phone to have the same permissions as the office phone and frees you from missing any business calls.

With mobility extension feature, you can achieve the followings.

• Place free calls to your colleagues.
• Call external numbers using the trunks on the PBX.
• Receive calls using your mobile phone wherever and whenever calls reach your extension number.

Configure Mobility Extension

1. Log in the PBX web interface, go to Settings > Extensions, click

beside the extension that you want to edit.Note: If Linkus is enabled for the extension, this extension has no Mobility Extension feature and the relevant settings are hidden automatically.

1. On Edit Extension page, click Features tab.
2. In the Mobility Extension section, select the checkbox of Enable Mobility Extension.
3. Select the checkbox of Ring Simultaneously.
4. Set the mobile number and prefix.

• Set Mobile Number: Enter your mobile number to associate your mobile number with extension number.
• Prefix: Optional. Enter prefix of outbound route so that PBX can successfully route incoming calls to your mobile phone.When a call reaches your office phone, your mobile phone will ring simultaneously.

1. Click Save and Apply.

Use Mobility Extension

After configuring mobility extension, you can use your mobile phone to call in the PBX as follows.

1. Dial a trunk number of the PBX.You will hear a voice prompt asking you to dial a phone number that you want to call.
2. Dial an extension number or an external number.

• Dial an extension numberThe called party will see caller ID "mobile_number <extension_number>".
• Dial an external number

The called party will see caller ID "mobile_number".Note:

• Make sure the prefix of mobile number matches the dial patterns of outbound route.
• Make sure at least two trunks are available on PBX. When you use your mobile phone to call in the PBX, the trunk which routes your incoming call to PBX will be occupied, PBX needs another trunk to call the external number out.

Call Monitoring Overview

Call Monitoring allows authorized users to monitor another extension user's call in real time. The supervisor can dial "feature code" + "extension number" to monitor the extension user's call.

Go to Settings > PBX > General, click Feature Code tab.

In the Call Monitor section, you can enable or disable monitor modes, and modify corresponding feature codes.

Yeastar S-Series VoIP PBX supports the following monitor modes:

• Listen (Default code: *90)

Listen mode allows supervisor to listen to a call in real time.

The supervisor can not talk with the monitored extension users.

• Whisper (Default code: *91)

Whisper mode allows supervisor to listen to a call in real time, and talk with the monitored extension user privately.

The other party can not hear the supervisor's voice.

• Barge-in (Default code: *92)Barge-in mode allows the supervisor to listen to a call in real time and talk with both parties.

Configure Call Monitoring

To monitor an extension, you need to set monitor settings for both the supervisors and the monitored extension users.

1. Enable and select a monitor mode for the supervisor.
2. Go to Settings > PBX > Extensions, click

beside the desired extension.

1. On the configuration page, click Features tab.
2. In the Monitor Settings section, select a Monitor Mode for the supervisor.

• Disabled: Not allowed to monitor other extension users' call.
• Extensive: Use any one of listen, whisper, or barge-in mode to monitor.
• Listen: Listen to a call in real time, but you can not talk with the monitored extension users.
• Whisper: Listen to a call in real time, and talk with the monitored extension users privately.
• Barge-in: Listen to a call in real time and talk with both parties.

1. Click Save and Apply.

Set the extension which will be monitored.

1. Go to Settings > PBX > Extensions, click

beside the desired extension.

1. On the configuration page, click Features.
2. On the Monitor Settings section, select the checkbox of Allow Being Monitored.

1. Click Save and Apply.

Call Permission

Set Call Permission of an Extension

On the Extension configuration page, you can set the outbound call permissions for the extension user.

1. Go to Settings > PBX > Extensions, click

beside the desired extension.

1. On the Extension configuration page, click Call Permission tab.
2. Select outbound routes for the extension from Available box to Selected box.

Outbound Routes Permission

Select outbound routes to the Selected box, the extension user will have the permission to make outbound calls through the selected outbound routes.

Outbound Restriction

• Prohibit Outbound Calls

Select the Outbound Restriction option to prohibit this extension from making outbound calls.

On the Extensions page, the extension will be locked and the extension status will show

.Note: If the extension user makes outbound calls over the limit of Outbound Restriction rule, the extension will also be locked.

Cancel Restriction for Outbound Calls

Double click the icon

or unselect the checkbox of Outbound Restriction to allow this extension to make outbound calls.

Extension Settings

SIP Extension Settings

This reference describes all settings on a SIP extension.

Basic Settings

Navigation path: Settings > PBX > Extensions, edit a SIP extension on the Basic tab.

General Settings

User Information Settings

Presence Settings

Extension Presence indicates the availability status of a SIP extension. Presence settings are linked to the Call Forwarding rules and Linkus ring strategy. You can set different call forwarding rules and ring strategy for each presence status.

Navigation path: Settings > PBX > Extensions, edit a SIP extension under the Presence tab.

Presence Settings

Call Forwarding Settings

You can forward calls to a specific destination or a specific extension user to avoid missing calls. Depending on the presence status and your preferences, you can set the PBX to forward calls to voicemail, extension, mobile number, queue, etc.

Ring Strategy Settings

You can set ring strategy for the following terminals that the SIP extension registered to.

• Extension
• Linkus Mobile Client
• Linkus Desktop Client

Features Settings

You can configure voicemail, mobility extension, call monitoring, and other settings under the Features tab.

Navigation path: Settings > PBX > Extensions, edit a SIP extension under the Features tab.

Voicemail Settings

Mobility Extension

Yeastar Mobility Extension allows you to stay in contact with colleagues and clients using either office phone or mobile phone with the same extension number.

Monitor Settings

Call Monitoring allows authorized users to monitor another extension user's call in real time.

Hot Desking

Other Settings

Advanced Settings

The advanced settings of SIP extension require professional knowledge of SIP protocol. Incorrect configurations may cause calling issues. It is wise to retain the default settings provided on the SIP extension page. However, for a few fields, you need to change them to suit your situation.

Navigation path: Settings > PBX > Extensions, edit an extension under the Advanced tab.

VoIP Settings

Enable User Agent Registration Authorization

IP Restriction

Call Permission Settings

You can set the outbound call permissions for the SIP extension.

Navigation path: Settings > PBX > Extensions, edit a SIP extension under the Call Permission tab.

IAX Extension Settings

This reference describes all settings on an IAX extension.

Basic Settings

Navigation path: Settings > PBX > Extensions, edit an IAX extension under the Basic tab.

General Settings

User Information Settings

Presence Settings

Extension Presence indicates the availability status of an extension. Presence settings are linked to the Call Forwarding rules and Linkus ring strategy. You can set different call forwarding rules and ring strategy for each presence status.

Navigation path: Settings > PBX > Extensions, edit an IAX extension under the Presence tab.

Call Forwarding Settings

You can forward calls to a specific destination or a specific extension user to avoid missing calls. Depending on the presence status and your preferences, you can set the PBX to forward calls to voicemail, extension, mobile number, queue, etc.

Ring Strategy SettingsYou can set ring strategy for the following terminals that the IAX extension registered to.

• Extension
• Linkus Mobile Client
• Linkus Desktop Client

Features Settings

You can configure voicemail, mobility extension, call monitoring, and other settings under the Features tab.

Navigation path: Settings > PBX > Extensions, edit an IAX extension under the Features tab.

Voicemail Settings

Mobility Extension

Yeastar Mobility Extension allows you to stay in contact with colleagues and clients using either office phone or mobile phone with the same extension number.

Monitor Settings

Call Monitoring allows authorized users to monitor another extension user's call in real time.

Other Settings

Advanced Settings

Navigation path: Settings > PBX > Extensions, edit an IAX extension under the Advanced tab.

IP Restriction

Call Permission Settings

You can set the outbound call permissions for the IAX extension.

Navigation path: Settings > PBX > Extensions, edit an IAX extension under the Call Permission tab.

FXS Extension Settings

This reference describes all settings on an FXS extension.

Basic Settings

Navigation path: Settings > PBX > Extensions, edit an FXS extension under the Basic tab.

General Settings

User Information Settings

Presence Settings

Extension Presence indicates the availability status of an FXS extension. Presence settings are linked to the Call Forwarding rules and Linkus ring strategy. You can set different call forwarding rules and ring strategy for each presence status.

Navigation path: Settings > PBX > Extensions, edit an FXS extension under the Presence tab.

Call Forwarding Settings

You can forward calls to a specific destination or a specific extension user to avoid missing calls. Depending on the presence status and your preferences, you can set the PBX to forward calls to voicemail, extension, mobile number, queue, etc.

Ring Strategy SettingsYou can set ring strategy for the following terminals of the FXS extension.

• Extension
• Linkus Mobile Client
• Linkus Desktop Client

Features Settings

You can configure voicemail, mobility extension, call monitoring, hotline, and other settings under the Features tab.

Navigation path: Settings > PBX > Extensions, edit an FXS extension under the Features tab.

Voicemail Settings

Mobility Extension

Yeastar Mobility Extension allows you to stay in contact with colleagues and clients using either office phone or mobile phone with the same extension number.

Monitor Settings

Call Monitoring allows authorized users to monitor another extension user's call in real time.

Hotline

The hotline feature allows you to configure a phone so that when the user goes off hook, and waits for a specified time internal, the phone automatically dials a preconfigured number.

Other Settings

Advanced Settings

Navigation path: Settings > PBX > Extensions, edit an FXS extension under the Advanced tab.Analog Settings

Call Permission Settings

You can set the outbound call permissions for the FXS extension.

Navigation path: Settings > PBX > Extensions, edit an FXS extension under the Call Permission tab.