LD Trunk Issues

[TelcoTech]

We had a trunk go out of service last week. The issue was resolved in wiring on the LEC side. Since the trunks have come back in service, the attendant is getting multiple calls that when answered are a second of static and the call drops, for the most part it is too fast for her to hit the trunk-id button, but when she was able to, it verified it was happening on the trunk that was recently put back in service. Any ideas on what could be causing this???? At first I thought it might be testing???

 

[4merAvaya]

If these are analog trunks there is probably a metalic problem on the circuit, usually an intermitent ground.

Kevin

 

[orypecos]

status the trunk and see if all the members are back in service. If a T-1, do "list measurements ds1 " and check for errors. Do "status syn" and see if the pbx is synching off of a T-1 if u have one. Do "display errors" for that trunk and see if any of the errors point to a problem.

 

[TelcoTech]

Here is the error log for this board, all errors seem to refer to packet interface errors. Also there are no major or minor alarms on any boards. Our LEC tested no errors up until smart jack, but got errors to CSU. Is the board bad?


Port Mtce Name Alt Name Err Type Aux Data First Occur Seq Cnt Last Occur Seq Cnt2 Err Cnt State
02C2001 TIE-DS1 005/049 257 57473 06/06-11:37 06/07-10:42 3 n
02C2012 TIE-DS1 005/060 257 57473 06/06-11:42 6 n
02C2019 TIE-DS1 005/067 257 57473 06/06-11:42 06/08-16:48 6 n
02C2022 TIE-DS1 005/070 257 57474 06/07-03:41 06/07-10:18 4 n
02C2018 TIE-DS1 005/066 1 57476 06/07-03:42 06/09-03:40 13 n
02C2024 TIE-DS1 005/072 1 57476 06/07-03:42 06/07-10:42 4 n
02C2003 TIE-DS1 005/051 257 57474 06/07-03:44 06/07-10:40 3 n
02C2005 TIE-DS1 005/053 257 57474 06/07-08:17 4 n
02C2006 TIE-DS1 005/054 257 57474 06/07-08:18 2 n
02C2017 TIE-DS1 005/065 257 57473 06/07-08:45 06/07-08:18 2 n
02C2007 TIE-DS1 005/055 257 57474 06/07-10:39 06/07-08:18 5 n
02C2007 TIE-DS1 005/055 1 57476 06/07-10:40 7 n
02C2009 TIE-DS1 005/057 257 57473 06/07-10:40 2 n
02C2015 TIE-DS1 005/063 257 57474 06/07-10:40 5 n
02C2021 TIE-DS1 005/069 1 57476 06/07-10:41 06/09-03:41 8 n
02C2004 TIE-DS1 005/052 1 57476 06/07-10:42 7 n
02C2005 TIE-DS1 005/053 1 57476 06/07-10:42 06/07-10:42 5 n
02C2010 TIE-DS1 005/058 1 57476 06/07-10:42 06/09-03:42 20 n
02C2010 TIE-DS1 005/058 257 57474 06/07-10:42 06/08-16:48 3 n
02C2015 TIE-DS1 005/063 1 57476 06/07-10:42 06/09-03:44 4 n
02C2016 TIE-DS1 005/064 257 57474 06/07-10:42 4 n
02C2002 TIE-DS1 005/050 1 57476 06/07-10:43 06/07-10:44 2 n
02C2011 TIE-DS1 005/059 257 57474 06/07-10:43 06/07-10:17 4 n
02C2001 TIE-DS1 005/049 1 57476 06/07-10:44 06/09-10:41 3 n
02C2003 TIE-DS1 005/051 1 57476 06/07-10:44 06/07-10:45 9 n
02C2006 TIE-DS1 005/054 1 57476 06/07-10:44 06/07-10:44 2 n
02C2018 TIE-DS1 005/066 257 57474 06/07-10:44 1 n
02C2023 TIE-DS1 005/071 1 57476 06/07-10:44 06/09-03:40 16 n
02C2009 TIE-DS1 005/057 1 57476 06/07-10:45 06/09-10:40 25 n
02C2014 TIE-DS1 005/062 1 57476 06/07-10:45 06/07-10:42 4 n
02C2020 TIE-DS1 005/068 1 57476 06/07-10:45 06/09-03:41 6 n
02C2012 TIE-DS1 005/060 1 57476 06/07-10:49 06/09-03:44 23 n
02C2008 TIE-DS1 005/056 257 57474 06/08-16:48 06/07-11:42 4 n
02C2011 TIE-DS1 005/059 1 57476 06/08-16:48 06/09-10:40 25 n
02C2013 TIE-DS1 005/061 1 57476 06/08-16:48 06/08-10:42 7 n
02C2014 TIE-DS1 005/062 257 57473 06/08-16:48 06/07-08:17 2 n
02C2021 TIE-DS1 005/069 257 57474 06/08-16:48 06/08-16:48 1 n
02C20 UDS1-BD 2049 06/08-17:04 06/09-01:55 2 r
02C20 UDS1-BD 3073 13 06/08-17:04 1 r
02C20 UDS1-BD 1793 06/09-01:55 06/09-02:36 9 r
02C2004 TIE-DS1 005/052 1793 06/09-03:37 06/09-09:04 255 n
02C2009 TIE-DS1 005/057 1793 06/09-03:37 06/09-09:04 255 n
02C2014 TIE-DS1 005/062 1793 06/09-03:37 06/09-09:04 255 n
02C2019 TIE-DS1 005/067 1793 06/09-03:37 06/09-09:04 255 n
02C2024 TIE-DS1 005/072 1793 06/09-03:37 06/09-09:04 255 n
02C20 UDS1-BD 3585 17 06/09-03:41 4 r
02C20 UDS1-BD 3073 48 06/09-03:47 06/09-03:46 1 r
02C20 UDS1-BD 1794 1794 06/09-02:45 9 r
02C2001 TIE-DS1 005/049 1793 06/06-09:04 255 n
02C2001 TIE-DS1 005/049 1025 06/05-00:15 2 r
02C2002 TIE-DS1 005/050 257 57474 06/07-08:17 8 n
02C2003 TIE-DS1 005/051 1793 06/04-08:50 255 r
02C2006 TIE-DS1 005/054 1793 06/06-09:04 255 n
02C2008 TIE-DS1 005/056 1025 06/05-00:15 3 r
02C2008 TIE-DS1 005/056 1 57476 06/07-10:41 12 n
02C2008 TIE-DS1 005/056 2817 52992 06/05-00:15 3 r
02C2011 TIE-DS1 005/059 1793 06/06-09:04 255 n
02C2012 TIE-DS1 005/060 1793 06/04-08:50 255 r
02C2013 TIE-DS1 005/061 257 57474 06/07-10:42 1 n
02C2016 TIE-DS1 005/064 1 57476 06/07-10:39 8 n
02C2016 TIE-DS1 005/064 1793 06/06-09:04 255 n
02C2016 TIE-DS1 005/064 1025 06/05-00:15 2 r
02C2017 TIE-DS1 005/065 1 57476 06/07-10:40 9 n
02C2017 TIE-DS1 005/065 2817 52992 06/05-00:15 3 r
02C2018 TIE-DS1 005/066 1025 06/05-00:15 2 r
02C2018 TIE-DS1 005/066 1793 06/04-09:00 255 r
02C2019 TIE-DS1 005/067 1 57477 06/07-08:18 10 n
02C2020 TIE-DS1 005/068 257 57474 06/06-11:41 2 n
02C2021 TIE-DS1 005/069 2817 52992 06/05-00:15 2 r
02C2021 TIE-DS1 005/069 1793 06/06-09:04 255 n
02C2022 TIE-DS1 005/070 1 57476 06/07-10:40 12 n
02C2023 TIE-DS1 005/071 257 57474 06/07-10:43 1 n
02C2023 TIE-DS1 005/071 1793 06/04-09:00 255 r
02C2024 TIE-DS1 005/072 257 57474 06/08-16:48 1 n

 

[TelcoTech]

Also, if I run test board long, it passes all of the tests???? Thanks for taking time out to help!!!!

 

[TelcoTech]

And a status sync shows board 01c20 with 2 passes

 

[orypecos]

DS-1 circuit packs do fail, but very rarely. With no alarms and the errors that u have, I would say that there is a problem caused by your vendor.
This is from the maintenance books
Error Type 1—The DS1 Interface circuit pack detects a hardware error on
the DS1 tie trunk. This error can be caused by incompatible translations.
Make sure the parameters administered on the DS1 circuit pack form
match those administered on the far-end switch. See DEFINITY
Communications System Generic 3 V2 Implementation, 555-230-653, and
DEFINITY Communications System Generic 2.2 and Generic 3 V2
DS1/CEPT/ISDN-PRI Reference, 555-025-107, for details.
The Aux Data field indicates the following hardware error types:
If all administration errors between the switch and the far-end match, and
these errors continue to recur, follow normal escalation procedures.
57476 On-hook before wink
57477 On-hook before ready to receive digits
57485 Wink too short for valid signal
57487 The timer expired while waiting for an off-hook
signal from the far end as a response at end of digits
dialing. Check the far-end switch for related
problems.
Error Type 257—The DS1 Interface circuit pack detects a hardware error
on the DS1 tie trunk. The trunk cannot communicate with the far end
because it is unable to interpret digits sent from the far-end switch. The
Aux Data field indicates the following:
Check with the far-end switch or operating company for proper trunk
connection.
57473 The rotary dial rate is below 8 pulses per second.
57474 The rotary dial rate is above 12 pulses per second.