VoIP hardware is developing fast - this is where you ask all those “how do I make my SIP Telephone, Adapter or Asterisk box work with my voip provider?” questions.
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By supa213
#4201
Hi guys,

Just got my analogue phones connected via VOIP, sipgate basic and and obi202 which works fantastic. My only issue is with a phone extension that hangs off the old analogue master socket that virgin have recently disconnected from their box outside.

This master socket which the extension hangs off is upstairs in the same room as the obi. I thought I would be able to get an rj11 to BT cable and plug the rj11 into the 2nd port in the obi and the BT side into the master socket to make the analogue telephone extension downstairs work. I've tried this however and there is no dial tone on the phone downstairs. What am I doing wrong? Any ideas/help much appreciated.
User avatar
By WelshPaul
#4202
Hi,

Great to hear that your enjoying the savings and benefits that using VoIP brings...

So you have an old (unused) Virgin Media NTE5 Master socket in the same room as your OBi202 which in turn feeds an extension in another room, and you want to use that extension socket to connect a second phone to your VoIP setup? No Problem! :P

You say that "virgin have recently disconnected master socket from their box outside" but to prevent damage your OBi202 (should Virgin ever reconnect your line) what you need to do is remove the Virgin Media telephone cable feed coming in from the outside from terminals A and B on the rear of your Virgin Media NTE5 master socket. Don't rip out the feed completely, just remove the two cables from A and B:
NTE5.jpg
NTE5.jpg (51.01 KiB) Viewed 1542 times
Once removed curl them up and leave them lose inside the back plate. That way, should you ever need the Virgin Media line reconnecting all the engineer need do is reconnect them. ;-)

You now need to connect your OBi202 to terminals A and B on your old Virgin Media NTE5 master socket. To do this you're going to need one of these:
TE05827_.jpg
TE05827_.jpg (70.62 KiB) Viewed 1542 times
Simple cut off the BT plug to expose the internal wiring and connect the two center wires to terminals A and B on the NTE5 master socket. To help work out which pair to connect to your master socket, use the following diagram:
obi202.jpg
obi202.jpg (16.44 KiB) Viewed 1534 times
Line 1 0v from the OBi202 Phone 1 port would be wired to the A leg on the NTE5 socket.
Line 1 -48v from the OBi202 Phone 1 port would be wired to the B leg on the NTE5 socket.

Plug the RJ11 into Phone Port 1 on your OBi202 and power it up...

Your extension cable should be coming off connections 2,3 and 5 on the NTE5 front face plate like so:
NTE-Front-Plate.jpg
NTE-Front-Plate.jpg (38.49 KiB) Viewed 1542 times
And then in turn connecting to 2,3,and 5 at the extension point like so:
Exten-Socket-Colourcode.jpg
Exten-Socket-Colourcode.jpg (49.25 KiB) Viewed 1542 times
You should now have a dialtone on both the NTE5 master socket and extension socket. :-D

Just for the record, when connecting your OBi to your master socket, you no longer require a RJ11 (US) to BT (BTS) telephone plug adaptor with ringing capacitor as the master socket already contains one. :party:
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