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Call Progress Tone Configuration Commands
32
set coding profile_id dtmf_relay
The ITG supports DTMF relay, in which DTMF tones are detected during voice processing,
encoded into H323-UserInformation packets and conveyed to the remote ITG via the H.323
call control band. This command is used to enable or disable the DTMF relay feature.
set coding profile_id dtmf_relay {on | off}
Syntax description
profile_id Profile ID or name, as shown in Table 5-
1, of the coder to be
modified.
on Enable DTMF relay.
off
Disable DTMF relay. DTMF tones are compressed and send to
remote gateway the same as regular voice frame.
Factory default
Profile g723 g729 g723_53
g711
Setting on on on on
set coding profile_id sampling_time
Voice coders sample voice signals periodically then compress sampled signal into frame for
delivery to the remote party. Each coder supported by the ITG has a standard sampling time.
Sampling introduces delay to the voice packet. This command is used to modify the sampling
time for a coder. Increasing the sampling time introduces more delay but consumes less
bandwidth for the delivery of the voice packet, since relatively less overhead is needed to
delivery the packet.
set coding profile_id sampling_time milliseconds
Syntax description
profile_id Profile ID or name, as shown in Table 5-
1, of the coder to be
modified.
milliseconds
Sampling time for a voice coder. The appropriate sampling times
of a coder of values other than those shown in the table are not
valid.
Coder Sampling
time
g711 10 ms
20 ms
30 ms
g723
g723_53
30 ms
60 ms
g729 10 ms
20 ms
30 ms
40 ms
50 ms
60 ms
Factory default