On Tuesday 17 August 2021 at 21:55:15, Fred Posner wrote:
On 8/17/21 2:20 PM, Antony Stone wrote:
If not, can anyone suggest something else which could sit in between a very basic SIP client and a PBX server, in order to inject these sorts of commands into the path and thereby give me these sorts of extra call capabilities?
This really sounds like a better use case for Asterisk, FreeSWITCH, SEMS, or PJSIP.
I know Asterisk pretty well.
When you use it as a SIP client to register to another PBX, it is extremely basic - it can place a call and it can receive a call, but it has no concept of presence, it cannot send a REINVITE to put a call on hold, it cannot send a REFER to transfer a call...
I don't understand how placing this in between my simple client and the PBX which is handling the call can possibly inject the commands I need.
Can you point me at anything which documents how this could be possible?
Thanks,
Antony.