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nethesis / ns8-nethvoice

NethVoice: an Asterisk based PBX
GNU General Public License v3.0
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Unable to use SRTP on Yealink phones #155

Closed Stell0 closed 5 months ago

Stell0 commented 5 months ago

Some Yealink phones (T34, T44), aren't able to properly negotiate SRTP and there is no audio (or white noise) when they are configured in SRTP.

BTW, following Yealink documentation, limiting srtp cypher to AES_CM_128_HMAC_SHA1_80 and AES_CM_128_HMAC_SHA1_32 audio works.

So the workarond now is to only use those two cypher on Tancredi. In the meantime a support ticket with Yealink has been opened and maybe they could fix the issue later.

Stell0 commented 5 months ago

When testing, make sure that configuring those phones on NS7 SRTP audio still works as expected