I am trying to configure MGCP controlled gateway but experiencing a call drop issue. A gateway has BRI card installed, when I try to make a call it rings but as soon as I receive call it just drop. I gathered some debug logs (Debug ISDNQ931). I have replaced DSP but still no luck.
When I ring first time after restart Gateway
Oct 31 16:04:23.730: ISDN BR0/1/0 Q931: RX <- RELEASE_COMP pd = 8 callref = 0x01
2951-rtr1#
Oct 31 16:04:32.423: ISDN BR0/1/0 Q931: RX <- SETUP pd = 8 callref = 0x01
Sending Complete
Bearer Capability i = 0x9090A3
Standard = CCITT
Transfer Capability = 3.1kHz Audio
Transfer Mode = Circuit
Transfer Rate = 64 kbit/s
Channel ID i = 0x89
Exclusive, B1
Calling Party Number i = 0x2183, '7776137568'
Plan:ISDN, Type:National
Called Party Number i = 0x81, '306892'
Plan:ISDN, Type:Unknown
Oct 31 16:04:32.435: ISDN BR0/1/0 Q931: TX -> CALL_PROC pd = 8 callref = 0x81
Channel ID i = 0x89
Exclusive, B1
Willenhall-2951-rtr1#
Oct 31 16:04:32.463: ISDN BR0/1/0 Q931: TX -> ALERTING pd = 8 callref = 0x81
Progress Ind i = 0x8088 - In-band info or appropriate now available
Willenhall-2951-rtr1#
Oct 31 16:04:34.487: ISDN BR0/1/0 Q931: TX -> CONNECT pd = 8 callref = 0x81
Oct 31 16:04:34.511: ISDN BR0/1/0 Q931: TX -> DISCONNECT pd = 8 callref = 0x81
Cause i = 0x80AF - Resource unavailable, unspecified
Oct 31 16:04:34.539: ISDN BR0/1/0 Q931: RX <- CONNECT_ACK pd = 8 callref = 0x01
Oct 31 16:04:34.551: ISDN BR0/1/0 Q931: TX -> STATUS pd = 8 callref = 0x81
Cause i = 0x80E2 - Message not compatible with call state or not implemented
Call State i = 0x0B
Oct 31 16:04:34.703: ISDN BR0/1/0 Q931: RX <- RELEASE pd = 8 callref = 0x01
Oct 31 16:04:34.707: ISDN BR0/1/0 Q931: TX -> RELEASE_COMP pd = 8 callref = 0x81
When I ring second time, it just beep and give this error message
Oct 31 16:05:40.233: ISDN BR0/1/0 Q931: RX <- SETUP pd = 8 callref = 0x01
Sending Complete
Bearer Capability i = 0x9090A3
Standard = CCITT
Transfer Capability = 3.1kHz Audio
Transfer Mode = Circuit
Transfer Rate = 64 kbit/s
Channel ID i = 0x89
Exclusive, B1
Calling Party Number i = 0x2183, '7776137568'
Plan:ISDN, Type:National
Called Party Number i = 0x81, '306892'
Plan:ISDN, Type:Unknown
Willenhall-2951-rtr1#
Oct 31 16:05:44.225: ISDN BR0/1/0 Q931: RX <- SETUP pd = 8 callref = 0x01
Sending Complete
Bearer Capability i = 0x9090A3
Standard = CCITT
Transfer Capability = 3.1kHz Audio
Transfer Mode = Circuit
Transfer Rate = 64 kbit/s
Channel ID i = 0x89
Exclusive, B1
Calling Party Number i = 0x2183, '7776137568'
Plan:ISDN, Type:National
Called Party Number i = 0x81, '306892'
Plan:ISDN, Type:Unknown
Willenhall-2951-rtr1#
Oct 31 16:05:48.194: ISDN BR0/1/0 Q931: RX <- DISCONNECT pd = 8 callref = 0x01
Cause i = 0x82E6 - Recovery on timer expiry
Oct 31 16:05:48.198: ISDN BR0/1/0 Q931: TX -> RELEASE_COMP pd = 8 callref = 0x81
Cause i = 0x80D1 - Invalid call reference value
