I have a AS5350 and recently I updated the IOS from 12.3 to 12.4.
The configuration didnt changed, but in the 12.4, the calls are disconected with the code(service or option not available, unspecified (63)).
I turn the ISDN debug on and this is what I got.
If I rollback to 12.3 everything works fine.
This is the output from the debug isdn q931.
Dec 23 16:18:09.780: ISDN Dc3/2 SC Q931: RX <- SETUP pd = 8 callref = 0x0049 Bearer Capability i = 0x9090A2 Standard = CCITT Transfer Capability = 3.1kHz Audio Transfer Mode = Circuit Transfer Rate = 64 kbit/s Channel ID i = 0xE982839F Exclusive, Interface 2, Channel 31 Facility i = 0x9E8100036774640000002E49414D2C0D0A4743492C65643330616139396630613731316465613761313030303362616563393539640D0A0D0A Progress Ind i = 0x8183 - Origination address is non-ISDN Calling Party Number i = 0x2181, '5132013022' Plan:ISDN, Type:National Called Party Number i = 0xA1, '0212730760333' Plan:ISDN, Type:National Dec 23 16:18:09.992: ISDN Dc3/2 SC Q931: TX -> RELEASE_COMP pd = 8 callref = 0x8049 Cause i = 0x80B9 - Bearer capability not presently authorized
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