Cisco SPA232D Administration Manual page 136

Configuring the Voice Settings
PSTN (LINE Port)
Cisco SPA232D Administration Guide
Field
Silence Supp
Enable
G726-32 Enable
Echo Canc Enable
FAX V21 Detect
Enable
Echo Canc Adapt
Enable
FAX CNG Detect
Enable
Echo Supp Enable
FAX Passthru
Codec
DTMF Process
INFO
FAX Codec
Symmetric
DTMF Process
AVT
Description
To enable silence suppression so that silent audio frames
are not transmitted, select yes. Otherwise, select no.
Default setting: no
To enable the use of the G726 codec at 32 kbps, select
yes. Otherwise, select no.
Default setting: no
To enable the use of the echo canceller, select yes.
Otherwise, select no.
Default setting: yes
To enable detection of V21 fax tones, select yes.
Otherwise, select no.
Default setting: no
To enable the echo canceller to adapt, select yes.
Otherwise, select no.
Default setting: yes
To enable detection of the fax Calling Tone (CNG), select
yes. Otherwise, select no.
Default setting: no
To enable the use of the echo suppressor, select yes.
Otherwise, select no.
Default setting: no
Select the codec for fax passthrough, G711u or G711a.
Default setting: G711u
To use the DTMF process info feature, select yes.
Otherwise, select no.
Default setting: yes
To force the ATA device to use a symmetric codec during
fax passthrough, select yes. Otherwise, select no.
Default setting: yes
To use the DTMF process AVT feature, select yes.
Otherwise, select no. When set to no, the AVT (RFC2833)
payload type is not be included in outbound SDP.
Default setting: yes
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