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- Mar 16, 2015
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Howdy, haven't run into this one before, but maybe one of you has. We have several customers set up this way, but only one seems to be having an issue with 911 calls. And it's a fire station. Main difference with this customer is that they are in another city and have different PRI providers and various other telcos that could be between them and the party called.
3CX 14, about 120 Yealink phones (T42 and T46 mostly)
PRI with a Patton SN4970
Everything works the way it should and we had no issues during initial installation and testing. However, recently its been reported at at least 2 stations that when they have to call 911, they get one way audio. The dispatcher can not hear them, but they can hear the dispatcher.
When the Dispatch calls back, both parties can hear each other fine.
I've put in a ticket with Patton to see if they have any ideas, and we're basically trying to narrow this down as much as possible. Googleing, I haven't found any specific Patton or 3CX issues like this. There was one forum post about Cisco systems that indicated that if the Gateway was a H.323 you need to run: voice rtp send-recv from the cli. I don't believe this applies to us, but perhaps something similar?
We did some limited testing, and could not nail down with the 911 Dispatch what kind of equipment they were using or weather the call backs originated on the same equipment or phone system.
Any ideas?
thanks,
3CX 14, about 120 Yealink phones (T42 and T46 mostly)
PRI with a Patton SN4970
Everything works the way it should and we had no issues during initial installation and testing. However, recently its been reported at at least 2 stations that when they have to call 911, they get one way audio. The dispatcher can not hear them, but they can hear the dispatcher.
When the Dispatch calls back, both parties can hear each other fine.
I've put in a ticket with Patton to see if they have any ideas, and we're basically trying to narrow this down as much as possible. Googleing, I haven't found any specific Patton or 3CX issues like this. There was one forum post about Cisco systems that indicated that if the Gateway was a H.323 you need to run: voice rtp send-recv from the cli. I don't believe this applies to us, but perhaps something similar?
We did some limited testing, and could not nail down with the 911 Dispatch what kind of equipment they were using or weather the call backs originated on the same equipment or phone system.
Any ideas?
thanks,