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Configuring the Voice Settings
Line1 Settings (PHONE Port)
Cisco SPA232D Administration Guide 114
4
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
Echo Canc Adapt
Enable
To enable the echo canceller to adapt, select yes.
Otherwise, select no.
Default setting: yes
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
AV T
To use the DTMF process AVT feature, select yes.
Otherwise, select no.
Default setting: yes
FAX Process NSE To use the fax process NSE feature, select yes. Otherwise,
select no.
Default setting: yes
DTMF Tx Method Select the method to transmit DTMF signals to the far end:
InBand, AVT, INFO, or Auto. InBand sends DTMF by using
the audio path. AVT sends DTMF as AVT events. INFO
uses the SIP INFO method. Auto uses InBand or AVT
based on the outcome of codec negotiation.
Default setting: Auto
Field Description