We’re using a Vega 100G as a gateway between our ISDN PRI provider’s interface and our FreePBX system. When we get an inbound call, the CID appears fine but the CNAM is missing the first letter for all of the calls we receive.
I spoke with our provider (Cox Communications) and their tier II says that their equipment is showing that it’s pushing the full CNAM out from their end. Is there an setting for the T1 interface that I’m missing? Any help would be appreciated.
This is what the Vega log shows for the inbound call:
LOG: 09/27/2019 10:31:24.390 ISDN (I)R01C02 incoming
call ref=[f100059e] srce=TEL:8442431545,DISP:OX COMMUNICATI 
LOG: 09/27/2019 10:31:24.390 ROUTER (I)R0bC00 FINDROUTE profile:1(Legacy) plan:1
call ref=[f100059e] <-- ISDN [1,1] dest=TEL:9774
–> SIP [2,1] dest=TEL:9774
LOG: 09/27/2019 10:31:24.390 ROUTER (I)R0bC00 call proceeding
LOG: 09/27/2019 10:31:30.735 SIP (I)R03C17 connect g711Ulaw64k (Profile 1 - Voice)
LOG: 09/27/2019 10:38:18.840 ISDN (I)R04C02 disconnect 16
LOG: 09/27/2019 10:38:18.840 ISDN (I)R04C02 send release 16
LOG: 09/27/2019 10:38:18.840 SIP (I)R04C10 disconnect(disc req) 16
The inbound CNAM is from Cox Communications and they said that they’re sending 15 characters. As you can see the CNAM in the log is only 14 characters with the missing first letter.