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Has someone here found a solution f

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BBQ1

Technical User
Jan 31, 2024
3
PH
Has someone here found a solution for the NEC analog telephone not ringing problem?
I cheked already the programming and analog telephone is set to default to be ringing unlike digital telephone you have a choice signal or voice.

Thank you in advance.
 
Not ringing? Bad phone? Did you put a test set on it? Check your cabling? Bad port? Bad power supply? It's just trouble shooting. Also remember these new systems (all of them) have reduced ring voltage. SO if you are trying to use a really old analog phone it may not ring.
 
@CoralTech
I already tried same model telephone and it is brand new but same thing happened its not ringing. maybe I can check the cabling or the port that local extension. TY!
FYI the system is SL1000.
 
Ok, make sure it's configured for SLT. Pretty sure those systems have like a jumper or something so they can configure the ports for other things. Check a hardware manual.
 
Put a voltage meter on the line and see if it hits 110 volts AC when it should be ringing. I you see it spiking but never going above 110 volts test it at the MDF. If is still low you probably have a bad (weak) power supply.





There are 10 kinds of people in the World.

Those that understand Binary and those that don't.
 
Thank you, I have identified the issue. It has to do with the RJ10 connector that powers up the AT40 Analog phone. I replaced the RJ10 connector with an RJ11 connector.
 
That must have been one really screwed up phone. Fist there is no such thing as an RJ10 and second the RJ10 designation is commonly mistakenly used for a handset plug (4P4C) which never had an RJ designation because it is never directly connected to a line. An RJ11 is a 6P2C and would probably have been the best option however these days most people are using 8P2C connectors to integrate with structured cabling (yes you can fit a 6P2C into an 8P socket but it compresses the outer pins and can damage the socket in the long term). Just for clarification see here......

 
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