CM 3.2(2c) / vg200 IOS v12.3(9) / Nortel opt61 4-digit dialing problem

[awis321]

I've been working on this problem with TAC and the PBX technician close to 2 months now. The problem is,
4-digit dialing from PBX -> CM works but 4-digit dialing from CM -> PBX fails.

From the PBX traces, The D-channel message shows

DCH 22 IMSG SETUP REF 00008005 CH 22 22 TOD 10:24:22
CALLING #:8071 NUM PLAN: PRIVATE
CALLED #:8616 NUM PLAN: PRIVATE

PRI205 DCH: 22 DATA: 0207ACC0
DCH 22 OMSG REL COMP REF 00008005 CH 22 22 TOD 10:24:22
CAUSE :NORMAL UNSPECIFIED
DIAG: 150

The way the tech explained it is, the pbx doesn't like the call classification so it's disconnecting the call. I've tried all sorts of call classification types with no success.

Per TAC's suggestion, we've tried the following with no success:

a) upgrade vg200 IOS to v12.3(9)

b) add command "isdn map address .* plan privacy type abbreviated" under serial interface

c) on the PBX, change IFC from SL1 to S100 and change TKTP from ISA to DID

Any ideas? I've included relevant information from the vg200 below:

controller T1 1/0
framing esf
linecode b8zs
cablelength short 133
pri-group timeslots 1-24
!

interface Serial1/0:23
no ip address
no logging event link-status
isdn switch-type primary-dms100
isdn incoming-voice voice
isdn channel-id invert extend-bit
no cdp enable

GW2#sh isdn status
Global ISDN Switchtype = primary-dms100
ISDN Serial1/0:23 interface
dsl 0, interface ISDN Switchtype = primary-dms100
Layer 1 Status:
ACTIVE
Layer 2 Status:
TEI = 0, Ces = 1, SAPI = 0, State = MULTIPLE_FRAME_ESTABLISHED
Layer 3 Status:
1 Active Layer 3 Call(s)
CCB:callid=11, sapi=0, ces=0, B-chan=23, calltype=VOICE
Active dsl 0 CCBs = 1
The Free Channel Mask: 0x803FFFFF
Number of L2 Discards = 0, L2 Session ID = 15
Total Allocated ISDN CCBs = 1

GW2#debug isdn q931
VG200-IMCBP-GW2#
02:17:17: ISDN Se1/0:23 Q931: TX -> SETUP pd = 8 callref = 0x0003
Bearer Capability i = 0x8090A2
Standard = CCITT
Transer Capability = Speech
Transfer Mode = Circuit
Transfer Rate = 64 kbit/s
Channel ID i = 0xA98316
Exclusive, Channel 22
Calling Party Number i = 0x0081, '8071'
Plan:Unknown, Type:Unknown
Called Party Number i = 0x80, '8616'
Plan:Unknown, Type:Unknown
02:17:17: ISDN Se1/0:23 Q931: RX <- RELEASE_COMP pd = 8 callref = 0x83
Cause i = 0x819F - Normal, unspecified
GW2#

 

[ccmuser]

Do you get secondary dial tone? busy tone? reorder tone?

 

[awis321]

I get no tone. ~1 sec after the last digit is entered the display on the phone simply clears -- just as it would if the called party hangs up. The traces show a "Normal unspecified" disconnect.

 

[iptuser]

Change the IFC on the Nortel to ISIG.
CM only works on Q Sig. using teh ISO version. The SLI is for Nortel to Nortel config.


wayne

 

[iptuser]

Change the IFC on the Nortel to ISIG.
CM only works on Q Sig. using the ISO version. The SLI is for Nortel to Nortel config.


wayne