Inalp Networks SmartWare R2.00, Software Configuration Manual, Page: 254 / 321

254 VoIP Profile Configuration
Command Purpose
Step 1 node (pf-voip)[ name ]#dtmf-relay Enable DTMF relay
Step 2 node (pf-voip)[ name ]#exit
Step 3 node (cfg)#context cs
Step 4 node (ctx-cs)[switch]#interface
isoip name
or
node (ctx-cs)[switch]#interface
h323 name
Optional:
Change to CS interface configuration mode to
overwrite the settings in the VoIP profile in a
specific CS interface
Step 5 node (if- type )[ if-name ]#no dtmf-
relay
Disable DTMF relay on a specific interface
Example: Enabling DTMF Relay
The following example shows how to enable DTMF relay for the VoIP profile and disable it for the
ISoIP interface.
SN> enable
SN# configure
SN(cfg)# profile voip ISoIPProfile
SN(pf-voip)[ISoIPPr~]# dtmf-relay
SN(pf-voip)[ISoIPPr~]# exit
SN(cfg)# context cs
SN(ctx-cs)[switch]# interface isoip IpBackbone
SN(if-isoip)[IpBackb~]# no dtmf-relay
26.5 Enable Echo Canceller
Echoes are reflections of the transmitted signal, which result from impedance mismatch in the hybrid
(bi-directional 2-wire to 4-wire converting) device. Some voice devices unfortunately have an echo
on their wire. Echo cancelation provides near-end echo compensation for this device as illustrated in
Figure 26-3.
Figure 26-3: Echo Cancellation
Procedure
To enable echo canceller
Software Configuration Guide, Revision 1.03