CPC and the CO 1

[ttech]

I have a system and the CO is not sending a CPC -co disconnect signal. It is a 5E switch that comes to my customer through a PG cable. I talked to the guy at the CO and he has NO IDEA what I am calling about. Every Voice mail messasge ends woth BEEP BEEP BEEP if you woulld like to make a call......

Does anyone know specifically what to tell this CO guy what needs to be done to resolve this. he thinks it's the voice mail but i KNOW i am not recieving the open from the CO.

Don

 

[gene1]

I believe want you want is called "forward disconnect", and it's a monentary reversal of batt and grd as a signal for disconnect, the CO can breakout the channels and watch the a&b signal bits to see if it's getting to the originating PG in the CO, if so the trouble is most likely in the PG system!
Hope this helps,
Gene

 

[392]

You can also try lowering the Hold Disconnect Timer under #203. Default is 450ms, try dropping it to 250 to see if that cures your ills. If not, set it back and hound the carrier for a reliable disconnect signal.

 

[itpphoneguy]

Hi ttech,
I tried playing with the timers with no luck. Try the term "positive disconnect", maybey they will understand that term. If you get on the line with a tester, they can implement it and you will see the Partner drop the line in around 1/2 sec. after he hangs up. Gene1 is right, it is a momentary polarity reversal.
-Chris

 

[ttech]

Most CO's nowadays do an open loop disconnect. If you connect a toner on the polarity setting on the line paralell to in coming into the switch you will see the green polarity light go out for about a half of a second after the othe party has hung up, showing the open loop.

It works that way at my house.

If it were the old reversal/wink the light would change to red for a second.

Well anyway I am not getting either. I even set the #203 setting to 50ms, witch sould almost guarentee a disconnect on even the slightest singal.

I'm gonna give some old Bell guys My dad worked with a call and see what they say.

Thanks for the input

Don

 

[itpphoneguy]

Hi ttech,
What you want is sometimes an extra charge to install the feature. If you get a tester on line with you, you can prove it's needed & possibly have it added at no charge. It is possible that the switch your LEC is using is not capable. DMS-100/250 are. I wish you the best there.
-Chris

 

[skip555]

you might want to check this out and see if it helps
looks like he seels some stuff that might get it going

http://www.sandman.com/cpcbull.html

 

[ttech]

The major problem is I know what I need but the guy at the CO Has NO idea what the heck I am talking about. I'm hoping in that talking to some bell guys my dad worked with, I may find out what they might call it.

He told me to tell the people in the office to hang up the phone when they are done talking.

 

[itpphoneguy]

Hi Don,
Does that guy have a supervisor?

 

[TouchToneTommy]

When I went through this with Pacific Bell, which has now become SBC, they termed it "COD - Cutoff On Disconnect" (and they pronounced it like the fish, not cash-on-delivery). My problem was a customer switched from copper to pair-gain without being told, called a backdoor number into the central office, and got a hold of a tech that found that they needed _older_ release line cards in the pair gain to pass the COD to the customer.

 

[ttech]

Thanks TTT i;ll try asking for that. It seems like a small CO in a semi-rural area