I have not been able to find documentation on how to do this.
I have an inbound PRI Asterisk server (1) which gets the callerid numbers just fine. I route(Dial) calls to another Asterisk server (2) via IAX2 on a remote LAN. On that LAN are Polycom501s. Everything works great except the callerid on the Polycoms shows the PRI number Asterisk server (1) and not the original callerid.
I’ve tried the zapata.conf useincomingcalleridonzaptransfer=yes parameter with no impact.
Does anyone know how to do this?
Thanks in advance.