Upgraded CallManager from 3.3 to 7.1, including hardware , and upgraded the voice gateway router. Configs on both have stayed the same.
Calls to certain numbers drop after 3minutes, but the number can be dialled again straight away, i.e. the phone does not reset, but the call to the same number will drop after 3minutes. Only happens on certain numbers and is not restricted to certain route patterns. The majoirty of calls a unaffected so in total affects about 1% of calls so there is no obvious pattern.
Termination Cause Code is 102 = Recovery on timer expiry (The call was terminated when a timer expired and a recovery routine was executed) - I have checked all the timers on gateway and CCM to no avail.
The fault can be replicated every time on the specified numbers. I have opened a Cisco TAC case and also logged with telco who are currently investigating -
I'm interested to know if anyone has come across this kind of issue before??
The circuit is ISDN E1 PRI. Debug isdn q931 for the failed calls has a different CONNECT message to the rest of the good calls....
000326: Apr 21 10:51:34.811: ISDN Se0/0/0:15 Q931: RX <- SETUP_ACK pd = 8 callref = 0x811E
Channel ID i = 0xA98381
Exclusive, Channel 1
000327: Apr 21 10:51:36.687: ISDN Se0/0/0:15 Q931: RX <- CALL_PROC pd = 8 callref = 0x811E
000328: Apr 21 10:51:36.691: ISDN Se0/0/0:15 Q931: RX <- ALERTING pd = 8 callref = 0x811E
Display i = '*86*X#'
000329: Apr 21 10:51:37.251: ISDN Se0/0/0:15 Q931: RX <- CONNECT pd = 8 callref = 0x811E
Display i = '*AA*NOT SUITABLE FOR DATA#'26
000330: Apr 21 10:51:37.255: ISDN Se0/0/0:15 Q931: TX -> CONNECT_ACK pd = 8 callref = 0x011E
000342: Apr 21 10:54:36.737: ISDN Se0/0/0:15 Q931: TX -> DISCONNECT pd = 8 callref = 0x011E
Cause i = 0x80E6 - Recovery on timer expiry
000343: Apr 21 10:54:36.861: ISDN Se0/0/0:15 Q931: RX <- RELEASE pd = 8 callref = 0x811E
Cause i = 0x8290 - Normal call clearing
Display i = '*AA*CLEARED#'
000344: Apr 21 10:54:36.861: ISDN Se0/0/0:15 Q931: TX -> RELEASE_COMP pd = 8 callref = 0x011E
If anyone has any ideas or more info is required please let me know?? Any input will be appreciated.