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W52P Non audio on some external calls
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Kevin_Yealink Offline

Posts: 204
Joined: Jul 2016
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Post: #4
RE: W52P Non audio on some external calls
(05-15-2017 12:54 PM)dstamour Wrote:  The call does not go through a NAT router. The phone is on the same network as the PBX and the situation occurs between the W52P and the PBX. I'am 100% sure it's not a "one way audio" or "no audio" situation cause by a router. The phone sends a "RTCP Goodbye" packet just after receiving the "180 Ringing" and start responding "ICMP Destination unreachable" when receiving RTP packets from the PBX.

To solve the issue, please export all pacp,syslog,config.bin files to me, then we can do more troubleshooting. You can refer to this FAQ to get those files.

I need to check with you on this issue:
1. when you use W52P to make internal call, will this issue happened?
2. If you register the account on other phone, will this issue happened? If not, please export pacp,syslog,config.bin files to me.
3. Does the issue happened every time when you make external call?
4. How many phones in your side? How many phones have such issue?

05-16-2017 08:43 AM
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RE: W52P Non audio on some external calls - Kevin_Yealink - 05-16-2017 08:43 AM

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