Configuring the Voice Settings
PSTN (LINE Port)
Cisco SPA232D Administration Guide
Field
FAX Passthru
Method
DTMF Tx Method
FAX Process NSE
Symmetric RTP
FAX Disable ECAN
Dial Plans
Field
Dial Plan 1/2/3/4/
5/6/7/8
Description
Select the fax passthrough method: None, NSE, or
ReINVITE.
Default setting: 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.
Default setting: Auto
To use the fax process NSE feature, select yes. Otherwise,
select no.
Default setting: yes
Enable symmetric RTP operation. If enabled, the ATA
sends RTP packets to the source address and port of the
last received valid inbound RTP packet. If disabled (or
before the first RTP packet arrives) the ATA sends RTP to
the destination as indicated in the inbound SDP.
Default setting: yes
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
Description
Enter up to eight dial plans into this dial plan pool. You can
associate a dial plan with a VoIP Caller or a PSTN Caller by
referencing the index number (1~8). See
Gateway
Setup,
VoIP Users and Passwords (HTTP
Authentication), and
information about the dial plan syntax, see
Dial Plans, page
225.
Default setting: (xx.)
VoIP-To-PSTN
PSTN-To-VoIP Gateway
4
Setup. For
Configuring
136