Thursday, October 22, 2015

Linphone keys (DTMF) not working with Freeswitch VOIP Server

Work around to key tones not working in Linphone when connected through Freeswtich

If you find that after dialing into any IVR your key presses are not registering, and you are connecting to a Freeswitch voip gateway it is likely due to this Bug: Telephone-event codec clock-rate mismatch (leads to DTMF issue); go 'Options > Settings > Codec' and move the 8000Hz codes up.

A temporary work around is to change your codec priorities in Linphone to use one of the lower quality 8000Hz ones first.

Comment or follow me if this has helped you.

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