Voice port issue

shaunswales · ‎02-24-2009

Hi

Am having a problem with an E1 running from a PABX to a Cisco 2800 voice gateway.

when doing a sh voice por summ, I get the following, not all channels are going into the dormant state, the amount of channels increase/decrease at random, and starts disconnecting calls with a user busy tone:

PORT CH SIG-TYPE ADMIN OPER STATUS STATUS EC

========= == ============ ===== ==== ======== ======== ==

1/0:15 01 isdn-voice up up none none y

1/0:15 02 isdn-voice up dorm none none y

1/0:15 03 isdn-voice up dorm none none y

1/0:15 04 isdn-voice up up none none y

1/0:15 05 isdn-voice up up none none y

1/0:15 06 isdn-voice up up none none y

1/0:15 07 isdn-voice up dorm none none y

1/0:15 08 isdn-voice up dorm none none y

1/0:15 09 isdn-voice up up none none y

1/0:15 10 isdn-voice up dorm none none y

1/0:15 11 isdn-voice up dorm none none y

1/0:15 12 isdn-voice up down none none y

1/0:15 13 isdn-voice up down none none y

1/0:15 14 isdn-voice up down none none y

1/0:15 15 isdn-voice up down none none y

1/0:15 17 isdn-voice up down none none y

1/0:15 18 isdn-voice up down none none y

1/0:15 19 isdn-voice up down none none y

1/0:15 20 isdn-voice up down none none y

1/0:15 21 isdn-voice up down none none y

1/0:15 22 isdn-voice up down none none y

1/0:15 23 isdn-voice up down none none y

1/0:15 24 isdn-voice up down none none y

1/0:15 25 isdn-voice up down none none y

1/0:15 26 isdn-voice up down none none y

1/0:15 27 isdn-voice up down none none y

1/0:15 28 isdn-voice up down none none y

1/0:15 29 isdn-voice up down none none y

1/0:15 30 isdn-voice up down none none y

1/0:15 31 isdn-voice up down none none y

Any ideas why this is happening?

paolo bevilacqua · ‎02-24-2009

which exact ios are you using ?

if you reload the router, does it behaves correctly for a while ?

shaunswales · ‎02-24-2009

Version 12.2(11)T2.

Have reloaded and then only 1 or 2 channels are in dormant state and then slowly increments, and then decrements again after a while. We have replaced the card in the router, replaced the cabling, and the card in the PABX, which has made no difference.

Nicholas Matthews · ‎02-24-2009

12.2T code is very old. I would put the most recent code that is 1) released for your platform or 2) fits on your flash and see if you get different results.

-nick

shaunswales · ‎02-24-2009

Thanks Nick, I'll have a look at a later version, log a change and upgrade. However in situations like this when down time is required, we have to provide a valid reason for upgrading, checked the bug toolkit and don't find anything specific to this problem. I'll give it a try and post results here soonest.

Thanks