[cisco-voip] Troubleshooting ISDN PRI alternating between TEI_ASSIGNED and AWAITING_ESTABLISHMENT

[Toma Tomov]

Culd you give me more information:
sh controllers e1/t1

this will provide us with infoabout Layer 1

It seems like Layer 1 problem.
if you provide us with configuration of controler interface will be perfect;
also
give Output of "debug isdn standart"

On 11/21/06, Robert Kulagowski <bob at smalltime.com> wrote:
>
> 2851 router running 12.4.10a.  ISDN PRI not coming up; sh isdn
> stat shows alternating between TEI_ASSIGNED and AWAITING_ESTABLISHMENT.
>
> isdn q.921 debugging shows
> EVENT: Pri_Activate_L2: sending NL_EST_REQ
> L2_EstablishedDataLink: sending SABME
> user TX -> SABMEp sapi=0 tei=0
> user TX -> SABMEp sapi=0 tei=0
> user TX -> SABMEp sapi=0 tei=0
> user TX -> SABMEp sapi=0 tei=0
> EVENT: CCPRI_Go: received NL_EST_REQ
>
> Since this happened all of a sudden, I'm assuming that it's the
> carrier, but I'm not sure what exactly to tell them, since it's
> unlikely they understand Cisco terminology.  Can someone translate this
> into telco-ese?
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