|
|
Joined: Jan 2011
Posts: 49
Member
|
|
Member
Joined: Jan 2011
Posts: 49 |
Have a Televantage system, and the windows event log is showing that the D channel went down and came back up 44 seconds later, it also seems that it is hard to troubleshoot why calls would drop having 4 PRI's all dialogic cards, replaced wiring on one card, and connector on another, circuit tests come back clean
|
|
|
Visit Atcom to get started with your new business VoIP phone system ASAP
Turn up is quick, painless, and can often be done same day.
Let us show you how to do VoIP right, resulting in crystal clear call quality and easy-to-use features that make everyone happy!
Proudly serving Canada from coast to coast.
|
|
|
|
Joined: May 2002
Posts: 17,726 Likes: 19
Member
|
|
Member
Joined: May 2002
Posts: 17,726 Likes: 19 |
If the D channel went down every T-1 PRI it's controlling would drop calls, you may only have one D channel.
Retired phone dude
|
|
|
|
|
Joined: May 2007
Posts: 5,058 Likes: 5
Moderator-1A2, Cabling
|
|
Moderator-1A2, Cabling
Joined: May 2007
Posts: 5,058 Likes: 5 |
What Bill said. 1 PRI=23B+1D. 4 PRIs=92B+1D.
Some carriers are known to give you 1 D channel with each PRI, some only 1.
Inquire of your carrier.
They should also have error logs and be able to tell you what caused the D channel to drop.
Who is your Carrier, BTW?
Sam
"Where are we going and why are we in this hand basket?"
|
|
|
|
|
Joined: Dec 2005
Posts: 9,179 Likes: 8
Spam Hunter
|
|
Spam Hunter
Joined: Dec 2005
Posts: 9,179 Likes: 8 |
FAS = 1D per 23Bs.
MFAS = 1D for more than 23Bs.
I Love FEATURE 00
|
|
|
|
|
Joined: Jan 2011
Posts: 49
Member
|
|
Member
Joined: Jan 2011
Posts: 49 |
|
|
|
|
|
Joined: Jan 2011
Posts: 49
Member
|
|
Member
Joined: Jan 2011
Posts: 49 |
The issue is 44 second down time and combing back up isn't long enough for it produce data for them to gather, they sent the circuits to AT&T to test and they are clean
|
|
|
|
|
Joined: Jan 2011
Posts: 49
Member
|
|
Member
Joined: Jan 2011
Posts: 49 |
They are giving us 1 D channel per PRI
|
|
|
|
|
Joined: Feb 2006
Posts: 1,716
Member
|
|
Member
Joined: Feb 2006
Posts: 1,716 |
You need to ask the carrier to dispatch a tech with a Tbird or equivalent PRI tester to determine the exact cause of the problem. To lose 4 D channels at the same time kind of points to a common issue like a Smart Jack nest with outboard power supply that might have gone bad.
Rcaman
Americom, Inc.
Where The Art And Science Of Communications Meet
|
|
|
|
|
Joined: Jan 2011
Posts: 49
Member
|
|
Member
Joined: Jan 2011
Posts: 49 |
They stated that the smart jack tests come back clean, it's only 1 PRI card that loses the D channel for 44 seconds, even removing the problem card we still see issues. even though they say there tests come back OK from the circuit
|
|
|
|
|
Joined: Feb 2006
Posts: 1,716
Member
|
|
Member
Joined: Feb 2006
Posts: 1,716 |
Of course their remote tests come back clean. They can only see a very short time period. You should demand a tech be sent to the site and do a stress test FROM THE SITE. That is the ONLY way they can see if there's a problem on the span.
Rcaman
Americom, Inc.
Where The Art And Science Of Communications Meet
|
|
|
|
Forums84
Topics94,442
Posts639,563
Members49,823
| |
Most Online5,661
May 23rd, 2018
|
|
|
2 members (Toner, Coral Tech),
112
guests, and
82
robots. |
|
Key:
Admin,
Global Mod,
Mod
|
|
|
|
