Short version of question: how can I set up IncrediblePBX 13-12.5 for RPi3 as a GV gateway into a main PBX (Grandstream UCM6116) without the call first being answered by IncrediblePBX and then sent to the main PBX? In other words is it possible to peer the connection so incoming GV calls go directly to the main PBX in a single step?
Long version: Our office uses a Grandstream UCM6116 as a main PBX. Primary trunks are supplied by Optimum voice and Callcentric. We also have a few GV numbers for which we use IncrediblePBX 13-12.5 for RPi3 as a gateway into the 6116. The GV numbers each have their own trunk and an inbound route which sends the call to an extension. The 6116 has a SIP trunk for each GV number which logs into the extension and routes the call as needed.
This approach has two shortcomings:
1) The caller hears two different ringback tones as the call is answered then transferred.
2) More importantly it defeats the simultaneous ring feature of GV. Your mobile will ring once then stop and you won't be able to get the call since it was already answered and forwarded.
I have to get this sorted out soon due to a reorganization so any guidance would be a big help and greatly appreciated. thanks, Russell
Long version: Our office uses a Grandstream UCM6116 as a main PBX. Primary trunks are supplied by Optimum voice and Callcentric. We also have a few GV numbers for which we use IncrediblePBX 13-12.5 for RPi3 as a gateway into the 6116. The GV numbers each have their own trunk and an inbound route which sends the call to an extension. The 6116 has a SIP trunk for each GV number which logs into the extension and routes the call as needed.
This approach has two shortcomings:
1) The caller hears two different ringback tones as the call is answered then transferred.
2) More importantly it defeats the simultaneous ring feature of GV. Your mobile will ring once then stop and you won't be able to get the call since it was already answered and forwarded.
I have to get this sorted out soon due to a reorganization so any guidance would be a big help and greatly appreciated. thanks, Russell
Phone System 