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Issue with GSM codec on the T46G
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esamuels Offline
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Joined: Oct 2014
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Post: #1
Question Issue with GSM codec on the T46G
Hello All,

I have been doing some testing with Freeswitch 1.4.13 and noticed that I have not been getting audio on calls between Zoiper / CSipSimple and my Yealink T46G. After further investigation I narrowed the issue down to GSM.

Between Zoiper / CSIPSimple (with only GSM enabled) and Yealink T46G (with PCMU, PCMA, G722 enabled) calls work flawlessly in both directions.

Calling between the Yealink T46G (with only GSM enabled) and Zoiper / CSIPSimple (with only GSM enabled) there is no audio.

Calls between Yealink T46G (with only GSM enabled) and my Yealink T20 (with PCMU, PCMA, G722 enabled) the audio on the T20 end is garbled and no audio on the T46G.

Calls between Zoiper / CSipSimple (with only GSM enabled) and Yealink T20 (with PCMU, PCMA, G722 enabled) we have two-way audio both ways.

It would be great if someone can verify this GSM issue on the T46G, I have tested with the latest Firmware as well as the previous

I have come to the conclusion that GSM on the T46G might be broken so it would be great if someone is able to confirm if this is the case.


10-31-2014 07:26 PM
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Issue with GSM codec on the T46G - esamuels - 10-31-2014 07:26 PM

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