We have a problem when Mobile calls to a Toil free number are rejected from Mobiles. Calls to same number from landline work ok. Our Service provider say that we are blocking the calls, but the our config hasn't changed and this has only started in the last week. I have done a Debug and the only difference I see is that the calling party number is not available. Can you have a look a this brief debug to tell me if its our Telco who is at fault.
<009><009>Exclusive, Channel 8
<009>Facility i = 0x9F8B0100A1080201010201008400
<009>Progress Ind i = 0x8281 - Call not end-to-end ISDN, may have in-band info
<009>Calling Party Number i = 0x21A3, N/A
<009>Called Party Number i = 0xA1, '6046766161'
ISDN Se1/0:23 **ERROR**: accept_incoming_csm_call: modem problem Bearer capability not available(0x3A): b channel 7, call id 0x58EA