asterisk users - Sep 2004 - Problem with supply of pin number from SJPhone

Hi Everyone

The prepaid billing system is properly installed in the asterisk box.

We are trying to connect from one SJPhone to another SJPhone using asterisk 
server.

The call procedure are as follows:

1. From one SJPhone the user dials sip:<destination user id>@<Asterisk
IP
address>.
2. Then sip packets will come to the asterisk "channel for sip" ( i.e.
chan_sip.c).
3. Then app_callingcard.c request to the user please enter the pin number.
4. Then the user enters his / her pin number. If the number is invalid then 
an IVR
is send back to the user telling "no card number entered".
5. Because when a session start from a source SJPhone with the asterisk 
server, SJPhone is not
able to supply the PIN number because one session already started.

Please give your suggestions how to rectify this problem.


with best regards.

Dipak Kumar Paul

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