Jose Miguel RiveraKeymaster
- November 4, 2019 at 8:16 pm
First, you have to make sure that your VoIP provider allows sending custom CID. Most of the providers force you to use or sent the CID assigned, otherwise, the call is rejected, or the CID is overwritten when arrives at the VoIP provider.
Secondly, you have to ask your VoIP provider if for custom CID you must send some special parameter on SIP Headers.0