Using a mini telephone exchange on EE fibre

[Mcmonocle]

I was with BT and had an NEC XN120 mini exchange with 8 extensions and was connected to the BT exchange through the BT router.

I could make, receive, transfer calls very easily.

I have moved house and I am now connected to EE fibre with a normal phone plugged into the EE router.

Unfortunately when I plug in my NEC XN120 system it will only receive an external call on  the main default extension. It will not ring on any other  extensions. I can however make calls out on any extension. 

The system is exactly the same one that was connected to BT.

Any ideas?

Thank you,

Mcmonocle

[Mustrum]

@Mcmonocle  that device would normally have three lines incoming, but can be expanded, I presume you only have one with EE. It is not really a DIY exchange and presume it would have been supplied and maintained by a Telecoms Company, perhaps BT or another?

[Mcmonocle]

Sorry for the delay. It came into my junk mail which I don't normally
look at.

Thanks for the reply.

I used to work as a BT engineer so I know the various phones and extensions.

The XN120 PBX could take many 2 wire copper lines.

When BT put in their modem (be it with copper wire to the master socket
and then to the modem) the XN120 worked well with all extensions able to
' talk to each other' and all extensions able to make and receive calls.

With the EE modem, only the fail safe extension (Number 200) can receive
calls although the incoming LED lights show up on the other extensions,
they cannot pick up the call.

All extensions can dial out.

All extensions can 'talk and ring' each other.

I was assured by EE that the XN120 exchange would work the same as BT did.

This isn't the case.

I'm trying to get EE to come back to me.

For information on the XN120 look at
https://www.manualslib.com/manual/1172415/Nec-Xn120.html

Thanks for any help anyone can give me

Mcmonocle

[Mustrum]

@Mcmonocle   How have you connected to the EE DV line? Via the phone socket on the router or the remote extension?

Some problems are fixed by using an ADSL dangly filter in the phone socket on the router.

[Mcmonocle]

I connected it to the router which gave me the results that I've got.

I the tried connecting a master socket to the router and tried the
master socket phone output to the XN120. I didn't try anything with the
broadband output on the master socket.

There are 4 wires on the BT plug Pin 2 black, pin3 red. pin 4 green and
pin 5 yellow

A normal phone that you can buy from Currys or Argos, etc. uses pins 2
and 5

These two pins I use to the RJ11 pins 3 and 4 on the XN120.

This was the sameconnection when it all worked on the BT router.

Strange!

Mcmonocle

[Mustrum]

@Mcmonocle   a normal phone does not care which round pins 2 and 5 are, but perhaps your exchange does. So it may be worth swapping 2 and 5 round.

Did you try the adsl dangly filter?

[Mcmonocle]

Hi - thanks again for trying to help.

Re 2 and 5 swapping - yes I did try it.

Re adsl dangly bit, no not yet. I'll try it out later today as I've got
a busy day.

I'll come back to you asap.

Cheers

Mcmonocle