Linksys SPA1001 Administrator User Manual page 128

Line Tab
G726-40 Enable
FAX Passthru Codec
DTMF Process INFO
FAX Codec Symmetric
DTMF Process AVT
FAX Passthru Method
DTMF Tx Method
FAX Process NSE
Hook Flash Tx Method
FAX Disable ECAN
Release Unused Codec
FAX Enable T38
Linksys IP Phone Administrator Guide
5-44
To enable the use of the G.726 codec at 40 kbps, select yes. Otherwise, select no.
The default is yes.
Select the codec for fax passthrough, G711u or G711a.
The default is G711u.
(Not in PAP2T) To use the DTMF process info feature, select yes. Otherwise, select no.
The default is yes.
To force the Linksys IP phone to use a symmetric codec during fax passthrough, select
yes. Otherwise, select no.
The default is yes.
(Not in PAP2T) To use the DTMF process AVT feature, select yes. Otherwise, select no.
The default is yes.
Select the fax passthrough method: None, NSE, or ReINVITE.
The default is NSE.
Select the method to transmit DTMF signals to the far end: InBand, AVT, INFO, Auto,
InBand+INFO, or AVT+INFO. InBand sends DTMF 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.
The default is Auto.
To use the fax process NSE feature, select yes. Otherwise, select no.
The default is yes.
Select the method for signaling hook flash events: None, AVT, or INFO. None does not
signal hook flash events. AVT uses RFC2833 AVT (event = 16). INFO uses SIP INFO
with the single line signal=hf in the message body. The MIME type for this message body
is taken from the Hook Flash MIME Type setting.
The default is None.
If enabled, this feature automatically disables the echo canceller when a fax tone is
detected. To use this feature, select yes. Otherwise, select no.
The default is no.
This feature allows the release of codecs not used after codec negotiation on the first call,
so that other codecs can be used for the second line. To use this feature, select yes.
Otherwise, select no.
The default is yes.
To enable the use of the ITU-T T.38 standard for faxing, select yes. Otherwise, select no.
T.38 is supported by the SPA2102 and the SPA8000. The SPA2102 supports a single T.38
connection. The SPA8000 supports one T.38 connection for each of its four modules (Line
1-2, 3-4, 5-6, and 7-8). The SPA8000 supports a maximum of four connections, but it does
not support two fax devices connected to the same module.
The default is yes.
Chapter 5 Linksys ATA Field Reference
Document Version 3.2