I only had q931 debug on and have switched back to NI2 for the moment. here is what I get on a call FROM the PBX

0:08:01: ISDN Se1/1:23 Q931: RX <- SETUP pd = 8 callref = 0x02
Bearer Capability i = 0x8090A2
Standard = CCITT
Transer Capability = Speech
Transfer Mode = Circuit
Transfer Rate = 64 kbit/s
Channel ID i = 0xE9808302
Exclusive, Interface 0, Channel 2
Calling Party Number i = 'A', 0x80, '5582802'
Plan:ISDN, Type:Subscriber(local)
Called Party Number i = 0xC1, '6263032'
Plan:ISDN, Type:Subscriber(local)
20:08:01: ISDN Se1/1:23 Q931: TX -> CALL_PROC pd = 8 callref = 0x8002
Channel ID i = 0xA98382
Exclusive, Channel 2
20:08:01: ISDN Se1/1:23 Q931: RX <- RELEASE pd = 8 callref = 0x02
Cause i = 0x81E4 - Invalid information element contents
20:08:8589934591: ISDN Se1/1:23 **ERROR**: CCPRI_Go: call id 0x2B event 0x57 No ccb Source->HOST
20:08:01: ISDN Se1/1:23 Q931: TX -> RELEASE_COMP pd = 8 callref = 0x8002

And to the PBX:

2600-cm#
19:08:01: %SYS-5-CONFIG_I: Configured from console by vty0 (192.168.177.10)
19:08:04: ISDN Se1/1:23 Q931: TX -> SETUP pd = 8 callref = 0x0002
Bearer Capability i = 0x8090A2
Standard = CCITT
Transer Capability = Speech
Transfer Mode = Circuit
Transfer Rate = 64 kbit/s
Channel ID i = 0xA98317
Exclusive, Channel 23
Display i = '2900,Cisco7960'
Calling Party Number i = 'A', 0x81, '2900'
Plan:ISDN, Type:Subscriber(local)
Called Party Number i = 0x80, '2802'
Plan:Unknown, Type:Unknown
19:08:04: ISDN Se1/1:23 Q931: RX <- RELEASE_COMP pd = 8 callref = 0x82
Cause i = 0x81B6 - Incoming calls are barred