Test phone for Digital TN's

[mikkidee]

I would like to know if there is a linesman phone (testphone) for the digital TN's.

 

[johnpoole]

i've never found one.. i've seen a few attempts at a shop built test box, but nothing that i would trust.

john poole
bellsouth business
columbia,sc

 

[Tman45]

Could you not just carry around a known good spare 2008/3904/etc.? Really the main piece I would be testing for is dial tone/proper operation. I can always go back and change keys or mess with anything that requires more troubleshooting.

Suppose that is what us ameteurs do. Seems to work fine for me.

 

[hskrdean]

If you do a search, there are ones that will say "Digital" or "digital compatible", but because of the different manufacturers of digital sets, it's impossible to have a test set correctly emulate all of them. I've not found one yet that will give me dial tone on every digital port. Some, it does, most it won't.

 

[eroberts9]

Generally with regular telephone butt set(with modular plug) you can tell if its a good working digital port.
In monitor mode you will hear digital noise, switch to talk and listen for battery.
If you have both, 9 out of 10 you have a good working digital line port.
True you wont know if its programmed or if polarity is correct but you can almost always tell if its a good port by listening to it.

 

[mikkidee]

Hi guys, thanks very much for your help on this. I have also not been able to find a testphone which can be specifically used for the Nortel system. Thanks once again.