Configuring Voice
Configuring Voice Settings
Cisco SPA100 Series Phone Adapters Administration Guide 106
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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
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
FAX Disable ECAN If enabled, this feature automatically disables the
echo canceller when a fax tone is detected. To use
this feature, select yes. Otherwise, select no. Default
setting: No
DTMF Tx Mode DTMF Detection Tx Mode is available for SIP
information and AVT. Options are: Strict or Normal.
Default setting: Strict for which the following are true:
• A DTMF digit requires an extra hold time after
detection.
• The DTMF level threshold is raised to -20 dBm.
The minimum and maximum duration thresholds are:
• strict mode for AVT: 70 ms
• normal mode for AVT: 40 ms
• strict mode for SIP info: 90 ms
• normal mode for SIP info: 50 ms
Field Description
