I purchased an adaptor using that exact link you gave me. But it does not look like I expected, when I look at the contacts inside the socket. Could you please compare these pics to yours and confirm they match?
This is indeed the correct adapter and I can confirm that it matches all of mine (I have about 50 of them).
The reason I ask is: I also purchased this new 4-wire straight RJ11 to BT cable. I bought this to connect the Obi100's line socket to the BT master socket. Then I connect the adaptor to the Obi's Phone socket and plug the DECT phone into the adaptor using the DECT phone's original RJ11 to BT cable. But with this arrangement, I can't get a dial tone on the DECT phone.
I checked the new RJ11 to BT cable with my multimeter and confirmed it is connected straight accross for all 4 pins as shown in this pic:
There is an issue with your new 4-wire straight BT to RJ11 cable. If you compare the above 4-wire straight BT to RJ11 cable to what I posted here
, you will see that your cable routes like so:
- BT Pin 2 > RJ11 pin 5
- BT Pin 5 > RJ11 pin 2
Where as mine routes like this:
- BT Pin 2 > RJ11 pin 4
- BT Pin 5 > RJ11 pin 3
Because of this, i'm pretty sure your OBi110 will not work with your PSTN line when using this cable. Maybe check the Status > PHONE & LINE Status
page as before to confirm this? Also, any reason why you went with a 4-wire and not a 2-wire cable like you originally linked to?
Out of interest, does the DECT phone work if you connect it directly to the PSTN line? If it does, unplug it and connect it to the BT to RJ11 adapter, connect the BT to RJ11 adapters RJ11 plug to the phone port on the OBi and dial *** or **9222222222, anything happen?