This can be resolved by using Yeastar’s DNIS  (Dialed Number Identification Service) feature
1. Go to SIP Trunk configuration, enable DNIS, and give a name that you want to call you DID number.

2. Go to Settings => General => SIP => Advanced, change Get DID from to “To” (Default is ‘invite’, this will not work with Hoiio’s SIP Trunk)

3. Now whenever there is an incoming call to our test number, it will show a text description on top of the caller ID. (The description can be your DID number or a descriptive text that you can understand)

For more information, you may also refer:

  1. How to Use DNIS.
  2. Distinguish Inbound Calls by DNIS Name.