Samsung Ubigate iBG2016 Configuration Manual page 502

CHAPTER 4. H.323 Gateway Management
Configuring DTMF Relay
This section describes how to set the method of delivering DTMF tone via
H.323 signaling. To relay DTMF tone, H.323 gateway supports the 4 methods
as follows.
inband
rtp-nte
h245-alphanumeric
queued-digits
The inband method delivers DTMF to a voice path without separate
processing. In this case, a distortion may occur due to loss of RTP packets.
The rtp-nte method delivers DTMF tone via RTP according to RFC 2833, RTP
Payload for DTMF Digits, Telephony Tones and Telephony Signals. The
h245-alphanumeric method delivers DTMF tone via H.245
UserInputIndication message. The queued-digits method delivers DTMF tone
as RTP packets according to RFC 2833, and Queued Digits are supported for
analog-FXS subscribers.
How to Configure H.323 DTMF Relay
DTMF Relay method can be set for all H.323 calls, or differently for each
dial-peer. To set it for all H.323 calls, follow the procedure below.
Configuration Steps
configure terminal
−
voice service h323
−
dtmf-relay
−
exit
−
Detailed Steps
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