I have figured out how to get FreePBX and a Panasonic NCP1000 to play nice together using a V-SIPGW/16 card. I have used a split extensions numbering scheme to do this.
Extensions on the original system (Panasonic NCP1000) are 1XX, 2XX, 3XX,4XX,5XX and 6XX.
Extensions on the new system (FreePBX running on Hyper-V) are 8XX.
Users on each system can dial each other at will. Two way audio so all good their.
My issues is that the NCP1000 is connected to the PSTN through PRI/32. Users on the NCP1000 can dial 9 to get a idle line and subsequently dial out. What I have not got working is users of the FreePBX system can not dial out. Or at least I do not know how to.
So I am looking for some help with using the SIP trunk to access the PRI lines on the Panasonic NCP1000 from the FreePBX system.
I have tried to add prepend code to the Panasonic outbound routes dial pattern to maybe tell the NCP that we want to access a local idle line and then dial out but that has not worked yet.
Any pointers would be appreciated.