Howto:Does Innovaphone Gateway with v.6 firmware support RFC 2833 to provide SIP DTMF relay? Thanks.
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YES we support
SIP in-band DTMF and
SIP out-of- band DTMF
according to RFC 2833
YES we support
SIP in-band DTMF and
SIP out-of- band DTMF
according to RFC 2833