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+--- Thread: Yealink RFC4733 DTMF support (/showthread.php?tid=41665)
Yealink RFC4733 DTMF support - avayax - 03-30-2018 10:35 PM
RFC 4733 has superseded rfc 2833 for DTMF.
I don't see Yealink supporting it in V83 firmware.
Any plans supporting it in the future?