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416 821 NPA NXX Unreachable

CM 3.2.2c H323 PRI ISDN DMS100 gateway. Q.931 Disconnect cause code 0x8AFF indicates PSTN returning error from a network beyond the internetworking point. Anyone experienced anything like this? Thanks.

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Accepted Solutions
Cisco Employee

Re: 416 821 NPA NXX Unreachable

I think what may be happening is it gets passed to lucent switch for cellular then goes SS& to mobile, Lucent I believe needs to see calling party as national for it to get mapped correctly to ISUP.

Try putting this on serial interface 3/0:23 as a test

isdn map addr . plan isdn type nat

4 REPLIES
Cisco Employee

Re: 416 821 NPA NXX Unreachable

okay its private network serving remote user, interworking unspecified cause.

is what kind of gateway ? is gateway connected to switch or pbx ? can I see

debug isdn q931 from setup to disconnect ?

usually you see this when you go gateway to gateway and one side is setup to a pbx running qsig ( which is vendor dependent)and the other is a standard such as dms or ni2. You see it when the qsig side does a facility or a shift to codest that the other side can't map into the standard stack.

New Member

Re: 416 821 NPA NXX Unreachable

3660 nm-hdv-2t1 MFT h.323 gw connected to siemens pbx using ISDN DMS100. New CIPT implementation using new DID range 604-676-XXXX. I'm wondering if the remote cellular service provider serving 416-821 and 822 does not recognize 604-676 DID range?

Mar 28 16:34:09.712: ISDN Se3/0:23 Q931: TX -> SETUP pd = 8 callref = 0x2147

Bearer Capability i = 0x8090A2

Standard = CCITT

Transer Capability = Speech

Transfer Mode = Circuit

Transfer Rate = 64 kbit/s

Channel ID i = 0xA98397

Exclusive, Channel 23

Calling Party Number i = 0x00, 0x81, '6046764910'

Plan:Unknown, Type:Unknown

Called Party Number i = 0x80, '814168218384'

Plan:Unknown, Type:Unknown

Mar 28 16:34:09.796: ISDN Se3/0:23 Q931: RX <- CALL_PROC pd = 8 callref = 0xA14

7

Channel ID i = 0xA98397

Exclusive, Channel 23

Mar 28 16:34:10.940: ISDN Se3/0:23 Q931: RX <- PROGRESS pd = 8 callref = 0xA147

Cause i = 0x8AFF - Interworking error; unspecified

Progress Ind i = 0x8581 - Call not end-to-end ISDN, may have in-band inf

o

Mar 28 16:34:10.944: ISDN Se3/0:23 Q931: TX -> STATUS pd = 8 callref = 0x2147

Cause i = 0x80E4 - Invalid information element contents

Call State i = 0x04

Cisco Employee

Re: 416 821 NPA NXX Unreachable

I think what may be happening is it gets passed to lucent switch for cellular then goes SS& to mobile, Lucent I believe needs to see calling party as national for it to get mapped correctly to ISUP.

Try putting this on serial interface 3/0:23 as a test

isdn map addr . plan isdn type nat

New Member

Re: 416 821 NPA NXX Unreachable

This solved the problem. Thanks so much. Lunch is on me.

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