Recent content by ISDNman

This is deliberately made impossible or hard because of protecting against toll fraud. Good luck, I am not saying it is impossible, just that the default doesn't surprise me.

Is this a loop start trunk? Is ground start a possibility? If so that’s the best case solution. If not, and if you have been in telephony for a while, you know this, disconnect signaling is problematic. Best answer on loop start is a loop current wink, called CPC (calling party control). After...

My educated guess is that it cannot be done on the majority of systems. The exceptions would be systems entirely created by non-phone savvy engineers (IT folks without background in telephone switching). Keep in mind that in many ways Calling Line ID (AKA caller ID) is a logical extension of...

You are looking from something called enbloc (from enbloque) dialing.

Bugs on analog lines can *sometimes* be detected. Bugs on digital lines are impossible to detect. The FISA court that was created just to deal with this this type of scenario has been bypasses for "security" reasons despite the fact the court, records, and judges are all secret. Even optical...

I am in the USA so I don't know off the top of my head. But it will be exactly the same distance as for an E1 since the ISDN-30 is CEPT E1 at Layer 1. DO your searching with CEPT E1 instead of ISDN and I expect you will find something fairly easily. However, to get back to your problem. You...

Hello Folks, Not a lot of activity on this board. I am a weird case. I have a lifelong interest in Telephony and have taught myself a lot. I also have an audio background as well, having been involved in radio. I was very lucky to have had a job that used both these skillsets with a company...

thread589-1638617 Wow, AMI U interface! That is some early ISDN equipment! You do realize you could use 2B1Q instead and it won't mater in the user-side of the NT1, yes. ------------------------------------------- TIP: If you ask a better question, you will get a better reply. Be specific so...

Well, I am not an expert from the switch end of things, but I can answer some of your questions. One DSL per subscriber. Each DSL can, at least in theory, support up to 8 terminals. Not sure how this correlates exactly to TSPs, and most switches do not support 8 terminals. In reality, in the...

There is also a 2500 version of this. It doesn't have a Touch Tone keypad ;) ------------------------------------------- TIP: If you ask a better question, you will get a better reply. Be specific so we can help!

The "interpetation" of the code (and the code is local, but may, and often does, include the National Electric Code (NEC)) is completely up to the "authority having jurisdiction" namely the inspector. You may be able to get a second inspector to give an opinion, but odds are s/he will not want...

Read the stuff on the Sandman site. Determine if the station is AM or FM (they will give a station ID near the top of the hour. Determine if the problem is on the input side or the output side (disconnect the input from the paging amp and see if you still here it). If it is on the input side...

IIRC 110 blocks are Cat.5e rates. I know that 66 blocks are not. As far as splitting out pairs, I don't see the relevance to this thread. ? ------------------------------------------- TIP: If you ask a better question, you will get a better reply. Be specific so we can help!

Here is my off the cuff guess The terminal has relatively short DTMF tones. Quite possibly they are within spec, but the knology device may not be built on the standard (most people engineering this stuff these days are pretty ignorant). Or you may find the duration is illegally short on the...

Are you sure other phones see it? I'd check that first!! Of course you probably have but... good luck ------------------------------------------- TIP: If you ask a better question, you will get a better reply. Be specific so we can help!