Operation Manual

Configuring the Voice Settings
Line 1 and Line 2 Settings (PHONE 1 and PHONE 2)
Cisco SPA100 Series Administration Guide 94
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G729a Enable To enable the use of the G.729a codec at 8 kbps, select yes.
Otherwise, select no.
Default setting: yes
Silence Supp Enable To enable silence suppression so that silent audio frames are not
transmitted, select yes. Otherwise, select no.
Default setting: no
G726-32 Enable To enable the use of the G.726 codec at 32 kbps, select yes.
Otherwise, select no.
Default setting: yes
Silence Threshold Select the appropriate setting for the threshold: high, medium, or
low.
Default setting: medium
FAX V21 Detect
Enable
To enable detection of V21 fax tones, select yes. Otherwise, select
no.
Default setting: yes
Echo Canc Enable To enable the use of the echo canceller, select yes. Otherwise,
select no.
Default setting: yes
FAX CNG Detect
Enable
To enable detection of the fax Calling Tone (CNG), select yes.
Otherwise, select no.
Default setting: yes
FAX Passthru Codec Select the codec for fax passthrough, G711u or G711a.
Default setting: G711u
FAX Codec
Symmetric
To force the ATA to use a symmetric codec during fax passthrough,
select yes. Otherwise, select no.
Default setting: yes
DTMF Process INFO To use the DTMF process info feature, select yes. Otherwise, select
no.
Default setting: yes
FAX Passthru
Method
Select the fax passthrough method: None, NSE, or ReINVITE.
Default setting: NSE
DTMF Process AVT To use the DTMF process AVT feature, select yes. Otherwise,
select no.
Default setting: yes
Field Description