we are using ASTPP as a switch in middle for our PBXs. we got many other PBXs like asterisk/freepbx/wildix/swyx and so on. we have only 1 SIP Trunk from provider at backend. which we register on ASTPP as gateway.
then for each PBX we create SIP devices on ASTPP which is used as SIP Trunk on PBXs.
everything was working fine for 1 year until now our backend SIP trunk provider made some changes to caller ID setup.
so far ASTPP been sending remote party ID to our SIP provider . but now SIP provider expects P-Asserted-ID in SIP info instead of remote party ID.
i hope this can be done , may be by adding variables to SIP profile on ASTPP ?
can someone help with this please
thanks
Harry