asterisk users - Mar 2010 - Turning off DNIS on T1 set to FXO_LS protocol

Hello everyone,

Our company has an Asterisk server where one of the T1s is connected to 
an IVR.  Asterisk is configured for FXO Loopstart, and the IVR is 
configured FXS.

We can call into it, but our software doesn't expect DNIS digits on FXS, 
and the digits are being interpreted as user input.

We can certainly change our software accordingly, but our test bed also 
includes other switches where DNIS is not passed to the IVR.

I was wondering if there is a setting (Zaptel or Asterisk) that will not 
forward any DNIS information to the call?  I've searched the web as best 
I could, but did not find anything.  If you have a link that answers my 
question, please send that.

SERVER CONFIG:
Asterisk 1.4.23.1
Zaptel 1.4.12.1
Digium TE210P dual-span T1/E1/J1 card

Thanks in advance,

-- 
Dean Hoover
Waukesha, Wisconsin

Dean Hoover wrote:
> Our company has an Asterisk server where one of the T1s is connected to 
> an IVR.  Asterisk is configured for FXO Loopstart, and the IVR is 
> configured FXS.
If Asterisk is configured for FXO signaling (not port type), then that
means it is expecting to be providing battery and ringing to the other
endpoint, since it would the FXS *port*. In this configuration, when a
channel is dialed, the port will be put into ringing state, and if
configured, Caller ID will be sent. No digits will ever be sent unless
done after the call is up by an application.

If, on the other hand, Asterisk is configured for FXS signaling, it is
acting as an FXO port, and thus under normal circumstances a digit
string would be sent when calls are placed on those channel. This is
under control of the dialplan, though... using Dial(DAHDI/4) without
adding an extension to dial after it would cause chan_dahdi to go off
hook, skip sending any digits, and go into 'answered' mode.

-- 
Kevin P. Fleming
Digium, Inc. | Director of Software Technologies
445 Jan Davis Drive NW - Huntsville, AL 35806 - USA
skype: kpfleming | jabber: kfleming at digium.com
Check us out at www.digium.com & www.asterisk.org