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DTMF tones from T-20 not recognized
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James_Yealink Offline
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Post: #2
RE: DTMF tones from T-20 not recognized
Hi Chris,

May I know what's your PBX server? All three DTMF type(sip info, RFC2833, inband) can't work?

Please have a try of V73 firmware:
http://www.yealink.com/Upload/UCOne/2015...3.0.50.zip

Regards,
James
04-22-2015 05:05 AM
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RE: DTMF tones from T-20 not recognized - James_Yealink - 04-22-2015 05:05 AM

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