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Audio Issue - Snom821 - caller dont hear me

Hello Community,


i'm new here and from german. So my english is not the best but i hope i find help for me issue.


I have a enviroment with Asterisk 16.11.1 and 3 phones (Snom300, Snom370). All on Firmware 8.7.5.35. 

All devices are in the same LAN. Also the devices connected per pjsip.


Now i switch a Snom370 to Snom821. But i have the issue that the caller can't hear me on Snom821. On the call i hear my one Voice on speak in Snom821 also i can hear the caller. But he don't hear me.


Is it a Hardware issue or a other different. 


I have no ideas. 


Can one help me...


Also here are the settings  of Snom821 attached with placeholder for server etc. 


Thanks for all ideas or solutions.


good evening.

txt
1 Comment

Hello, 


try to switch off the user_srtp setting. 

This can be found under 

Phone Webuseinterface/Idebtity/RTP/RTP Encryption


best regards

snom support

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