[asterisk-users] US T1 Hangup Detection

[Daniel Hazelbaker]

On Jul 11, 2008, at 12:09 PM, Jay R. Ashworth wrote:

> On Tue, Jul 08, 2008 at 11:13:02AM -0700, Daniel Hazelbaker wrote:
>> D-Marc that terminates the 25-pair "analog" line coming in (this does
>> not just contain our lines as I can tap into other peoples lines and
>> hear there conversations, love security).
>
> The T-1's aren't on that, though, right?
...
>
> Really?  You have an RJ-21X block that contains both analog AND T1
> wires?  That's really uncommon.  I hope they at least put the red
> special service caps on the T1 wires.

Yup.  I thought that pretty funny myself.  10 year old analog wires  
running a digital T1. :)  And they do have some caps on them, I think  
it was red but not 100% sure.

I may have figured out the problem this morning, but I won't be able  
to test for a few days (again, aggravating that the only T1 line I  
have to test with is the live one).  I noticed this morning while  
telneted into the Adtran that when I hangup on our normal incoming  
lines the Receive A bit toggles.  I then noticed that two of the lines  
do NOT toggle the RA bit during hangup.  These happen to the be last  
two lines in the rotary so I would not normally get incoming calls and  
complaints on them.  They also happen to be the lines I was using to  
do my testing with. Grrr.

I called Verizon and opened a ticket for why those 2 lines are  
behaving differently and that sounds like the problem, but I won't  
know for sure until I can test and try calling on one of the lines  
that does toggle the RA bit. As soon as I get that tested I will  
report that, though I expect that should fix the hangup issue.

Thanks,
Daniel

> Cheers,
> -- jra
> -- 
> Jay R. Ashworth                   Baylink                      jra at baylink.com
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