getting busy tone in outgoing call

[rupam_chakra1983]

Hi

The issue i am facing is strange the issue is like.

when i am using my ip phone to dial a pstn mobile/landline number sometimes continiuosly it gives busy tone for 3 to 4 times and after that when i dial again the call get connected properly. I have checked the same from my cell number but still the problem is there the problem is occuring from last 6 to  days.

the problem is from most of the ip phones

the details of my ios and call manager are as follows:

cucm 7.0(1)

ios: c2800nm-spservicesk9-mz.124-3i.bin

has anyone from this community faced any issue like this plz let me know.

Thanks

Rupam

[mx]

Can you debug isdn q931 from the gateway and watch the call? It will tell you the reason for error. It is sounding like you will find "resource unavailable" error, possibly running out of channels in your PRI.

Bob

[rupam_chakra1983]

Plz find the output of " debug isdn q931"

I dont think this is due to resources unavailibility issue

*Nov 23 08:15:23.984: ISDN Se0/0/0:15 Q931: RX <- CONNECT pd = 8  callref = 0x97F6
*Nov 23 08:15:23.988: ISDN Se0/0/0:15 Q931: TX -> CONNECT_ACK pd = 8  callref = 0x17F6
*Nov 23 08:15:25.504: ISDN Se0/0/0:15 Q931: TX -> SETUP pd = 8  callref = 0x17F7
Sending Complete
Bearer Capability i = 0x8090A3
  Standard = CCITT
  Transfer Capability = Speech 
  Transfer Mode = Circuit
  Transfer Rate = 64 kbit/s
Channel ID i = 0xA98384
  Exclusive, Channel 4
Calling Party Number i = 0x0081, '66526641'
  Plan:Unknown, Type:Unknown
Called Party Number i = 0x80, 'XXXXXXXXXXX'
  Plan:Unknown, Type:Unknown
*Nov 23 08:15:25.548: ISDN Se0/0/0:15 Q931: RX <- CALL_PROC pd = 8  callref = 0x97F7
Channel ID i = 0xA98384
  Exclusive, Channel 4
*Nov 23 08:15:26.960: ISDN Se0/0/0:15 Q931: TX -> SETUP pd = 8  callref = 0x17F8
Sending Complete
Bearer Capability i = 0x8090A3
  Standard = CCITT
  Transfer Capability = Speech 
  Transfer Mode = Circuit
  Transfer Rate = 64 kbit/s
Channel ID i = 0xA98388
  Exclusive, Channel 8
Calling Party Number i = 0x0081, '66526668'
  Plan:Unknown, Type:Unknown
Called Party Number i = 0x80, 'CCCCCCCCCCCC'
  Plan:Unknown, Type:Unknown
*Nov 23 08:15:27.048: ISDN Se0/0/0:15 Q931: RX <- CALL_PROC pd = 8  callref = 0x97F8
Channel ID i = 0xA98388
  Exclusive, Channel 8
*Nov 23 08:15:27.208: ISDN Se0/0/0:15 Q931: RX <- PROGRESS pd = 8  callref = 0x97F8
Progress Ind i = 0x8288 - In-band info or appropriate now available
*Nov 23 08:15:29.696: ISDN Se0/0/0:15 Q931: RX <- PROGRESS pd = 8  callref = 0x97F7
Progress Ind i = 0x8281 - Call not end-to-end ISDN, may have in-band info
*Nov 23 08:15:29.880: ISDN Se0/0/0:15 Q931: RX <- ALERTING pd = 8  callref = 0x97F7
*Nov 23 08:15:29.900: ISDN Se0/0/0:15 Q931: RX <- PROGRESS pd = 8  callref = 0x97F7
Progress Ind i = 0x8288 - In-band info or appropriate now available
*Nov 23 08:15:29.900: ISDN Se0/0/0:15 Q931: TX -> STATUS pd = 8  callref = 0x17F7
Cause i = 0x82E5 - Message not compatible with call state
Call State i = 0x04
*Nov 23 08:15:29.928: ISDN Se0/0/0:15 Q931: RX <- STATUS pd = 8  callref = 0x97F7
Cause i = 0x82E4 - Invalid information element contents
Call State i = 0x04
*Nov 23 08:15:30.828: ISDN Se0/0/0:15 Q931: RX <- ALERTING pd = 8  callref = 0x97F8
Progress Ind i = 0x8288 - In-band info or appropriate now available
*Nov 23 08:15:33.464: ISDN Se0/0/0:15 Q931: TX -> DISCONNECT pd = 8  callref = 0x17F7
Cause i = 0x8090 - Normal call clearing
*Nov 23 08:15:33.492: ISDN Se0/0/0:15 Q931: RX <- RELEASE pd = 8  callref = 0x97F7
Cause i = 0x8090 - Normal call clearing
*Nov 23 08:15:33.500: ISDN Se0/0/0:15 Q931: TX -> RELEASE_COMP pd = 8  callref = 0x17F7
*Nov 23 08:15:40.528: ISDN Se0/0/0:15 Q931: TX -> SETUP pd = 8  callref = 0x17F9