One Communications T1 issue 3

[papagigo1]

One of my customers recently had all their CO lines sent over a T1 service that breaks them out or back to analog at the Merlin Magix location. So now their 8 CO lines that were copper from the Central Office now come from a One Communications T1 mux box on the wall.
They have had dialing issues, wrong numbers and clicking on the line for many weeks now, but seems to be clear when they come on sight to test. They now want me to change line/CO ports in the Magix and adjust the "disconnect time", which I don't think there is an option for in the Magix 4.0
Has anyone had an similar experiences using this set up?

Mike

 

[Dexman]

Does the T1 terminate into a DS1 card in the Magix, or does it terminate into a channelbank and then into a 800GS/LS-ID module?

If it ain't broke, I haven't fixed it yet.

 

[papagigo1]

The T1 terminates in a One Comm mux on the wall and comes out on a RJ21X using a double ended 25AB cable, from there it's xwired to different 408GS/LS-ID..


Mike

 

[SYQUEST]

Who made the "T1 mux box"? Is it an Adtran?

From what I understand about the Loop-start disconnect time on the Legend/Magix is that, it is a fixed timer of about 500 - 600ms. The only option is Reliable Disconnect or not on LS lines. The "clicking" noise to me sounds like a DS1 problem on the providers side. Can you duplicate the problem at he Demarc with a test set? Do all 8 lines experience the same problems?

....JIM....

 

[Dexman]

Loop start signaling on a T1 circuit is not a good combination. Channels can easily become hung if a caller hangs up while their call is being answered by an auto attendant.

Ground start and T1E&M are much better suited for a T1 carrier than loop start.

If it ain't broke, I haven't fixed it yet.

 

[papagigo1]

Dexman,

I didn't want to hear that, but it seems your right.
When it gets hung it stays that way for about 60 seconds then disconnects.

SYQUEST,
The clicking, I heard it using a butt set on their demarc, but only once in a while. The customer says sometimes it stays during the whole conversation..
I could try the reliable disconnect, it's worth a shot.

Thanks and stars to you both,

Mike

 

[Dexman]

If the T1 is used only for voice service (no data), you could install a 100 DS1 module & an external CSU and eliminate the mux/channel bank. Then both the provider's switch and the Magix could be re-optioned for T1E&M wink.

A while back I remember reading a note or document that mentioned that there was an "issue" with the 100 DCD and the "fix" was to disable the onboard CSU and install an external unit. I don't remember the exact nature of the problem.

If it ain't broke, I haven't fixed it yet.

 

[papagigo1]

I think I will try the Reliable Disconnect first..
What is the Reliable Disconnect normally used for in the Magix?

Thanks again,
Mike

 

[TouchToneTommy]

Reliable disconnect only affects Loop Start lines, you will find the setting under Lines and Trunks, then LS Disc, which you will set to Yes.

This assumes that the dial tone vendor is supplying a short drop of loop current to the Magix when the other party hangs up. If they aren't doing that, or are not capabile of that, the setting will not change anything.

We have several CLECs in this area that have had good success using Adtran Total Access series IADs (Integrated Access Devices), to break out a T1 into copper lines and Internet access. They are able to add the LS disconnect to the programming, the only place it doesn't give that is if you go off hook and don't dial anything. That shouldn't be an issue with a Magix.

 

[HiDesert]

I have had experience with T1 providers telling me the problem is my switch...I never have change any timers or
settings except for the LS reliable disconnect.
The problems your describe are issues that go back to their
ckt.
Keeping the channel bank allows you to test at the demarc.
Otherwise a DS1 card puts you at mercy of their techs.
Maybe you could ask Communication One Tech support if they
have other customers with the Merlin Legend/Magix and see
how they are configured.

 

[papagigo1]

HiDesert,

Thanks for the tip..I check the LS-Disconnect and it was already YES..