2N Indoor View - Page 55

2N® Indoor View User Manual
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Audio
Enable/disable the use of audio codecs for call setups and set their priorities.
The tab below helps you define how DTMF characters shall be sent from the intercom. Check the
opponent’s DTMF receiving options and settings to make the function work properly.
In-Band (Audio) – enable the classic method of sending DTMF in the audio band using
standardized dual tones.
RTP (RFC-2833) – enable DTMF sending via the RTP according to RFC-2833.
SIP INFO (RFC-2976) – enable DTMF sending via SIP INFO messages according to
RFC-2976.
The tab below helps you define how DTMF characters shall be received from the intercom.
Check the opponent’s DTMF receiving options and settings to make the function work properly.