asterisk users - Jul 2004 - zaphfc ptp & blocked incomming calls

Hi!


Configuration:
   2x isdn2 lines in ptp mode
   2x hfc cards + zaphfc
   asterisk with bristuf 0.0.2

problem:
   sometimes (after asterisk pc reboot???) provider stop forwarding
incoming calls (when somebody try call our pbx, he hear announcment
about technical problems, but asterisk dont show any information about
any  incoming calls)
   Only solution at this time is to
call provider to reenable incoming calls.

   Provider claims that our pbx  send command which cause this behavior.

Any ideas how to solve this problem???



Sorry for my english.

Raimonds Cicans

p.s. tomorrow I will meet with provider's technican and will try
to gather more information

I'd be very interested in the outcoming of this.

Greetings, Holger