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

30 ms

g723_53

 

 

60 ms

g729

10 ms

 

20 ms

30 ms

40 ms

50 ms

60 ms

Factory default

32

Call Progress Tone Configuration Commands