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#114088 - 06/14/11 03:12 PM SX_50 Trunks Disconnect.  
Joined: Jul 2010
Posts: 189
deadwalleye Offline
Member
deadwalleye  Offline
Member

Joined: Jul 2010
Posts: 189
Naples, FL
I have an issue with the trunks disconnecting everyday. It doesn't happen on every call but by the end of the day my trunks get all tied up and I have to manually disconnect it only happens on my LS/GS card in slot 9. I have replaced the card and it still does it. the are pots lines on the card. Here is the data programming:


COMMAND 565
abcdefghij
1111101010
201001001
3120002
40510010000
500780
611041
702433020
(4C
COMMAND 566
1111101010
abcdefghi
201001001
3120002
40510010000
500780
611041
702433020
(4B
COMMAND 567
1111101010
abcdefghi
201001001
3120002
40510010000
500780
611041
702433020
(4A
COMMAND 568
1011101010
201001001
3120002
40510010000
500000
611041
702433020
(59
COMMAND 569
1111101010
201001001
3120002
40510010000
500780
611041
702433020
(48
COMMAND 570
1011101010
201001001
3120002
40510010000
500000
611041
702433020
(60
COMMAND 571
1011101010
201001001
3120002
40510010000
500000
611041
702433020
(5F
COMMAND 572
1011101010
201001001
3120002
40510010000
500000
611041
702433020
(5E

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#114089 - 06/14/11 06:36 PM Re: SX_50 Trunks Disconnect.  
Joined: May 2005
Posts: 941
westerntelephone Offline
Member
westerntelephone  Offline
Member

Joined: May 2005
Posts: 941
Idaho Falls, Idaho USA
How many actual trunks do you have? What is on equipment #078 (what station and why)?

#114090 - 06/14/11 06:48 PM Re: SX_50 Trunks Disconnect.  
Joined: Jan 2005
Posts: 14,751
EV607797 Offline
Moderator-Vertical, Vodavi, 1A2, Outside Wire
EV607797  Offline

Moderator-Vertical, Vodavi, 1A2, Outside Wire
*****

Joined: Jan 2005
Posts: 14,751
Fayetteville, NC
Have you verified polarity, loop supervision and line voltage on these trunks? Real PBXs require the true FCC standards for signaling. My guess is that they are running at a voltage significantly below standards, as those delivered behind a channel bank or IAD. Worse yet, there is no open loop supervision being provided by the service provider upon disconnect of the INCOMING calls that hit these trunks.

The PBX will allow them to be siezed once, but not again. If they do not receive the appropriate loop supervision disconnect from the telco, the trunks aren't told to drop the call that was in progress, hence the trunk ports remaining engaged. The PBX is only doing what it is told to do (or in your case not).

Loop supervision is an issue that grows increasingly frustrating for us in the business daily. Telcos and CLECs simply don't understand that a POTS line isn't as simple as they think it is.

Get the service provider to provide this, verify your polarity of all trunks and things will be fine. Oh, and don't take their word for it. Verify it yourself. You will be amazed how well the system works once you tell them how to fix the problem.

Sarcasm intended on that last sentence, well sort of....


Ed Vaughn, MBSWWYPBX
#114091 - 06/15/11 05:01 AM Re: SX_50 Trunks Disconnect.  
Joined: Oct 2004
Posts: 1,056
fifty5footer Offline
Member
fifty5footer  Offline
Member
****

Joined: Oct 2004
Posts: 1,056
Phoenixville, PA
For each trunk, register 2, bit F, change from 1 to 0.
Dropping the disconnect timer makes the trunks more sensitive to disconnects.


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