DID's not working

We have 2 blocks of DID's, one that starts with 773, and the other that starts with 259. All of a sudden, the 259 numbers do not work (These are not the area codes just so we're clear). After going back and forth between our telco and Cisco TAC, they both blame the other. When I do a 'deb isdn q931', I do not see the call come through, however when our telco logs into the onsite router, they see the call hit the router, and get a clean disconnect signal without any errors. Our uplink is a PRI and we are on the XW7 release. This problem was present before the upgrade to XW7 ( I believe we were on XW4 before) so I know that it has nothing to do with the upgrade. Any thoughts as to who might be at fault. No configuration change was made, the literally just stopped working one day.

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How does that change?

I'll take a look at that, but I'm a bit confused how all of a sudden something like that can change. Any ideas?

Hi, be reassured that if you

Hi,

be reassured that if you "see" the calls for one DID block, but not the other, is telco fault.

They must have re-routed the block to someone else, without will.

Telcos can be very insistent in denying problems, because they're are programmed like that.

Invite them on premises with a portable call generate an put one them the burden of proof of receiving a call to the troubled DID block. This is pretty much the only thing that works as it will force them to look again in the full provisioning chain.

jnikolatos's picture

This sounds like you have

This sounds like you have the interface for the serial PRI card set wrong...

Like

Encapsulation type
switch type etc.

What provider? AT&T, Verizon? etc.

Here is a AT&T PRI... with 8 lines for voice..

controller T1 0/2/0
framing esf
linecode b8zs
pri-group timeslots 1-8,24

interface Serial0/2/0:23
no ip address
encapsulation hdlc
isdn switch-type primary-ni
isdn incoming-voice voice
no cdp enable

John
NIKTEK LLC

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