Need the flexibility of a monthly subscription without being tied in with a contract period, or international numbers to add on to your plan? Consider Hoiio.

Step 1: Select a Subscription Plan

Pricing based on monthly payment terms:

Pricing plan based on yearly payment terms:

Enjoy Savings by subscribing to a yearly subscription plan:

Step 2: Add phone numbers

Hoiio’s subscription plans do not include phone numbers, so you will need to add them on. There is no limit to how many numbers you can add on to your plan.

Each local Singapore number costs SGD 5.00/month (before GST), and is subject to a on-time activation fee of SGD 8.50 (before GST).

International numbers are also available, and you can refer to the respective rates here.

Need to retain your existing business number? Click here.


Local Per Minute Call Rates:

Incoming (except toll-free)Free
Outgoing (except toll-free)SGD 0.016

Retrieve a list of Hoiio call rates below:

Incoming Calls

Outgoing Calls

Hoiio offers both prepaid and post-paid payment options, depending on individual preference.

Contact Hoiio for more information on their SIP Subscriptions and porting procedures.

Alternatively, if you are ready to subscribe to a Hoiio SIP Trunk, click here for more information on application.


Already have a Hoiio SIP Trunk? Here’s how to register it to your Yeastar Cloud PBX.