2N IP series - Page 86

Configuration manual for 2N IP intercoms
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The tab below helps you define how DTMF characters shall be sent from the intercom. Check the
DTMF sending options and settings of the opponent to make the function work properly.
Sending Mode – define whether it is possible to send DTMF during a call by pressing 0
through 9, * and # on the intercom numeric keypad. Set the sending mode for incoming/
outgoing/all calls.
In-Band (Audio)– enable classic DTMF dual tone sending in the audio band.
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 DTMF receiving options and settings of the opponent to make the function work
properly.
In-Band (Audio)– enable classic DTMF dual tone receiving in the audio band.
RTP (RFC-2833)– enable DTMF receiving via the RTP according to RFC-2833.
SIP INFO (RFC-2976)– enable DTMF receiving via SIP INFO messages according to
RFC-2976.
QoS DSCP Value – set the audio RTP packet priority in the network. The set value is sent in
the TOS (Type of Service) field in the IP packet header. Value is entered in decimal format.