[Asterisk-Users] Panasonic PBX -to- Sirrix BRI: Numbers getting echoed/duplicated

[Peter Svensson]

On Thu, 14 Jul 2005, David Wilson wrote:

> I have a Panasonic PBX linked to a Sirrix Quad BRI card that is running
> in TE (ptp) mode in a Asterisk box - this then links through Internet to
> another Asterisk box via IAX2.
> 
> When a user on the Panasonic PBX system dials the extension of my Sirrix
> Asterisk box, Asterisk answers and says "Please dial the number of the
> person you are looking for....". This is done with cmd "Background".
> When this user enters an extension number to call the numbers that get
> picked up by Asterisk are repeated/echoed.
> 
> For example, if a user enters "19" at the voice prompt, Asterisk picks
> it up as "1199" and tries to then dial "1199" out to the remote Asterisk
> server.

One possible cause is that Asterisk receives the digits both as isdn 
indications (out of band) and as dtmf. Are you sure you have answered the 
line? On a bri link audio can be passed even without the line being 
answered.

Before the line is answered Asterisk can receive overlap digits. While 
in overlap reception mode in band (dtmf) digits are ignored. Yuo may want 
to enable overlap digits nn the link to the Panasonic.

I am not familiar with this particular BRI card. If it is not based on 
zaptel then the configuration will have to be made elsewhere.

Peter