Trunks used for PSTN calls.

SAIFUDEEN C .K · ‎08-18-2013

Hii all,

Is it posiible to find the particular ISDN trunk or channel which is used for a specific call.

I know we can find it from ISDN debug,But I want to know about a call which is happened already and we have the numbers and the time..

Please explain the same both for MGCP and H.323 envirnment.

thanks alot in advance.

paolo bevilacqua · ‎08-18-2013

Possibly with CDR accounting

VSA Cisco-NAS-port

will.alvord · ‎08-18-2013

If the call was recent, you can find that in show call history voice.

Sent from Cisco Technical Support Android App

paolo bevilacqua · ‎08-18-2013

will.alvord wrote:

If the call was recent, you can find that in show call history voice.

Sent from Cisco Technical Support Android App

That will not show the B-channel used, per OP question.

will.alvord · ‎08-19-2013

Sorry about that. I thought there was a detail flag which listed that level of detail.

SAIFUDEEN C .K · ‎08-20-2013

Thanks for your reply.

We have H.323 gatewyay.

is it possible to get the trunk, the call went throughh from CDR as we have only Ip of the gatewy in CUCM.

For MGCP it may work,i am not sure.

We have four T1 trunks from 3 different vendors.

All the vendors are saying that there were no call drop.

But around 5 calls were droped.Cisco TAC analysed the SDI and SDL logs and found nothing.

I am working for this problem case and expecting your suggestion to move further.