Configuring Voice
Configuring Voice Settings
172
Cisco SRP500 Series Services Ready Platforms Administration Guide (SRP520 Models)
6
Third Preferred Codec
Third preferred codec for all calls. (The actual codec
used in a call still depends on the outcome of the
codec negotiation protocol.) Select one of the
following:.
Unspecified, G711u, G711a, G726-16,
G726-24, G726-32, G726-40, G729a,
or
G723.
The default is Unspecified.
Use Pref Codec Only
To use only the preferred codec for all calls, select
yes
. (The call fails if the far end does not support this
codec.) Otherwise, select
no
.
The default is no.
Silence Supp Enable
To enable silence suppression so that silent audio
frames are not transmitted, select
yes
. Otherwise,
select
no
.
The default is no.
Silence Threshold
Select the appropriate setting for the threshold: high,
medium, or low.
The default is medium.
G729a Enable
To enable the use of the G.729a codec at 8 kbps,
select yes. Otherwise, select
no
.
The default is yes.
Echo Canc Enable
To enable the use of the echo canceller, select
yes
.
Otherwise, select
no
.
The default is yes.
Echo Canc Adapt
Enable
To enable the echo canceller to adapt, select
yes
.
Otherwise, select
no
.
The default is yes.
Echo Supp Enable
To enable the use of the echo suppressor, select
yes
.
Otherwise, select
no
.
The default is yes.
FAX V21 Detect Enable
To enable detection of V21 fax tones, select
yes
.
Otherwise, select
no
.
The default is yes.