[cisco-voip] MCI PRI Signalling and CallManager 3.3(4)

[nikola at spamcop.net]

If anyone on this list has any experience with setting up MCI-provided T1 PRIs
using CallManager and IOS MGCP gateway (3640 with HDV and MFT-T1 in this case),
I would greatly appreciate your help. MCI does not use NI signalling - according
to their tech, it is a "DMS-100 switch emulating 5ESS" (that was the extent of
MCI help).

Incoming calls on the PRI work fine (they get redirected into Unity handler);
outgoing calls get terminated with an '0x80E4 - Invalid information element
contents' error message. I did try several calling party/plan options, to no
avail.

Any help would be appreciated!

Nikola


P. S.: Here is a complete debug isdn q931:
*May 23 21:40:49.455: ISDN Se2/0:23 Q931: TX -> SETUP pd = 8  callref = 0x000A
        Bearer Capability i = 0x8090A2
                Standard = CCITT
                Transer Capability = Speech
                Transfer Mode = Circuit
                Transfer Rate = 64 kbit/s
        Channel ID i = 0xA98397
                Exclusive, Channel 23
        Net Specific Fac i = 0x00E6
        Display i = 'Nikola Stojsin'
        Calling Party Number i = 0x0081, '732[...]'
                Plan:Unknown, Type:Unknown
        Called Party Number i = 0xA1, '7324188900'
                Plan:ISDN, Type:National
*May 23 21:40:49.519: ISDN Se2/0:23 Q931: RX <- STATUS pd = 8  callref = 0x800A
        Cause i = 0x80AB28 - Access information discarded
        Call State i = 0x01

*May 23 21:40:49.523: ISDN Se2/0:23 Q931: TX -> STATUS pd = 8  callref = 0x000A
        Cause i = 0x80E4 - Invalid information element contents
        Call State i = 0x01
*May 23 21:40:49.567: ISDN Se2/0:23 Q931: RX <- CALL_PROC pd = 8  callref =
0x800A
        Channel ID i = 0xA98397
                Exclusive, Channel 23
*May 23 21:40:49.615: ISDN Se2/0:23 Q931: RX <- DISCONNECT pd = 8  callref =
0x800A
        Cause i = 0x80E4 - Invalid information element contents
*May 23 21:40:49.651: ISDN Se2/0:23 Q931: TX -> RELEASE pd = 8  callref = 0x000A
*May 23 21:40:49.715: ISDN Se2/0:23 Q931: RX <- RELEASE_COMP pd = 8  callref =
0x800A