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No audio on both sides with devices on different subnets ...
https://github.com/chan-sccp/chan-sccp/issues/553
chan-sccp is creating the rtp instance on the wrong interface. It should have created something like 192.168.1.210:36518 instead. A quick fix on your server would/might be, if you would allow ip_forwarding between the two local interfaces in sysctl.conf: net.ipv4.ip_forward = 1. But chan-sccp has to be fixed to do the right thing.
directrtp=on - no audio · Issue #405 · chan-sccp/chan-sccp ...
https://github.com/chan-sccp/chan-sccp/issues/405
Skinny Client Control Protocol (SCCP). Release: 4.3.2 (HEAD - 558d2b6M) As far as I can tell DirectRTP between SCCP endpoints on asterisk (7912/7940/7960) working correctly. But there is No DirectRTP in call between SCCP and PJSIP endpoint. RTP flow goes through the PBX for each call leg. Is it possible at all, in case of different signaling ...
How to troubleshoot one-way / no audio issues - Cisco ...
https://community.cisco.com/t5/collaboration-voice-and-video/how-to-troubleshoot-one-way-no-audio-issues/ta-p/3164442
-If this is happening with external calls, take a packet capture or PCM capture from the GW to see if you are getting audio from the far end.
No audio on chan_skinny 7941G - Asterisk Support ...
https://community.asterisk.org/t/no-audio-on-chan-skinny-7941g/37040
Hi all, as many others, first post 😃 I’ve got some problem with my Cisco 7941G and Asterisk (1.8.7.0). Before listing my problem, I want to explicit that I have a Cisco 7941G (firmware: SCCP41.8-4-2S), a SIP phone (Polycom IP320 SIP or Zoiper Free, but this is not influent) and Asterisk on a Ubuntu Server. Below there is my skinny.conf: [general] disallow=all …
Chan-SCCP channel driver for Asterisk / List chan-sccp-b ...
https://sourceforge.net/p/chan-sccp-b/mailman/chan-sccp-b-discussion/?viewmonth=201006
[Chan-sccp-b-discussion] No audio. From: Jay Hankins <nextbgates95@gm...> - 2010-06-25 23:44:30. I have recently installed the v3 RC and I have no audio. That's not to say it was working before, since I haven't had a Cisco phone for a while. I have a 7941 again and now I am not getting any audio. I'm not sure what logs to look for.
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