[cisco-voip] Directory number issue

[Kienzle, John]

Hello. Although we have a TAC case open, I thought I would get some
opinions from this excellent resource.

We have a CM 5.1.2.2000-3 cluster in our company. One of our sites was
recently migrated from a standalone legacy CM 4.2 cluster to our new
corporate 5.x CM cluster. The only issue We have had was after a few
days, one of our phones stopped receiving calls. DID calls, local LAN
calls by direct extension, calls over the WAN by direct extension - all
of them give a fast busy tone. The behavior is similar to an unused or
unassigned directory number. The phone registers to CM just fine and can
place calls in/out of network just fine. We've tried completely removing
the phone/DN from CM and adding it back again with no luck. Also, if you
assign the phone a different DN it works fine. Phone and line
configuration has been verified. The problem definitely follows the
suspect DN. A debug ISDN q931 give the following when calling the DN
over our PRI:

*Feb 12 13:44:57.810: ISDN Se0/3/1:23 Q931: RX <- SETUP pd = 8  callref
= 0x0A1B

        Bearer Capability i = 0x8090A2
                Standard = CCITT
                Transfer Capability = Speech
                Transfer Mode = Circuit
                Transfer Rate = 64 kbit/s
        Channel ID i = 0xA98386
                Exclusive, Channel 6
        Calling Party Number i = 0x2181, 'sourcenumber'
                Plan:ISDN, Type:National
        Called Party Number i = 0xC1, '5870'
                Plan:ISDN, Type:Subscriber(local)
*Feb 12 13:44:57.926: ISDN Se0/3/1:23 Q931: TX -> CALL_PROC pd = 8
callref = 0x
8A1B
        Channel ID i = 0xA98386
                Exclusive, Channel 6
*Feb 12 13:44:57.926: ISDN Se0/3/1:23 Q931: TX -> DISCONNECT pd = 8
callref = 0
x8A1B
        Cause i = 0x8081 - Unallocated/unassigned number
*Feb 12 13:44:58.006: ISDN Se0/3/1:23 Q931: RX <- RELEASE pd = 8
callref = 0x0A
1B
*Feb 12 13:44:58.082: ISDN Se0/3/1:23 Q931: TX -> RELEASE_COMP pd = 8
callref =
 0x8A1B
*Feb 12 13:44:58.614: ISDN Se0/3/1:23 Q931: RX <- SETUP pd = 8  callref
= 0x0968



John Kienzle
Senior ITS Analyst
Anadarko Petroleum/WGR
1400 E. Lincoln
Gillette, WY. 82716
WP - 307.685.5870
CP - 307.680.1746
John.Kienzle at anadarko.com



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