[cisco-voip] Resolution: AT&T Dedicated Long Distance Circuit -Mandatory information element missing

[Matthew Saskin]

For future reference, I don't believe changing the settings within CUCM will
do anything unless you've got 'ccm-manager config' enabled on the gateway.

Matthew Saskin
msaskin at gmail.com
203-253-9571



On Thu, Oct 21, 2010 at 11:43 PM, Jason Aarons (US) <
jason.aarons at us.didata.com> wrote:

> After several hours with AT&T Support they told us it was a Megacom T1, we
> tried to set Megacom in CallManager (bottom of Route Pattern) with no luck,
> finally setting it in IOS via “ isdn nsf-service megacom”
>
> resolved the problem.
>
>
>
> interface Serial0/0/1:23
>
> description AT&T Voice T1 LD
>
>  no ip address
>
> encapsulation hdlc
>
> isdn switch-type primary-4ess
>
> isdn incoming-voice voice
>
> isdn bchan-number-order ascending
>
>  isdn nsf-service megacom
>
> no cdp enable
>
>
>
> *From:* cisco-voip-bounces at puck.nether.net [mailto:
> cisco-voip-bounces at puck.nether.net] *On Behalf Of *Jason Aarons (US)
> *Sent:* Thursday, October 21, 2010 11:40 PM
> *To:* cisco-voip (cisco-voip at puck.nether.net)
> *Subject:* [cisco-voip] AT&T Dedicated Long Distance Circuit -Mandatory
> information element missing
>
>
>
> This is a dedicated LD circuit with AT&T, it’s 4ess but having trouble
> getting telco to tell us what their D-Channel is seeing?  Anyone seen this
> before?
>
>
>
> CallManager 8x, same results with h323 and SIP…..we
>
>
>
> 026437: Oct 21 20:39:54.101 EDT: ISDN Se0/0/1:23 Q931: TX -> SETUP pd = 8
> callref = 0x01A2
>
>         Bearer Capability i = 0x8090A2
>
>                 Standard = CCITT
>
>                 Transfer Capability = Speech
>
>                 Transfer Mode = Circuit
>
>                 Transfer Rate = 64 kbit/s
>
>         Channel ID i = 0xA98381
>
>                 Exclusive, Channel 1
>
>         Calling Party Number i = 0x0081, '9059643123'
>
>                 Plan:Unknown, Type:Unknown
>
>         Called Party Number i = 0x80, '4047407241'
>
>                 Plan:Unknown, Type:Unknown
>
> 026438: Oct 21 20:39:54.151 EDT: ISDN Se0/0/1:23 Q931: RX <- RELEASE_COMP
> pd = 8  callref = 0x81A2
>
>         Cause i = 0x83E020 - Mandatory information element missing
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