SPA122 using 2 lines out of port 1 using a 4 wire cord - Help

[micajah.vickers]

I have an SPA122 I have been pulling my hair out and can't find this solution.

I am using RingCentral. We have configured Port / Line 1 and Port / Line 2 on the SPA122 and both are working using a basic phone and a 2 wire cord on Line 1 and Line 2

the catch....

I need to connect the SPA Port 1 , using a 4 wire cord ->  a 2 line phone system on its port 1.  I need all 4 wires on SPA122 Port 1 working to the 2 line phone system.

I can't figure it out, there must be a way but I can't figure it out.

[Dan Lukes]

I need to connect the SPA Port 1 , using a 4 wire cord

Well, some ATAs offered such option. I'm unsure about SPA122. It's not documented, as far as I know.

Despite of it, it's not so hard to respond.

RJ11 plug have four contacts. The the 2&3 are used for Line1 Ring&Tip. Thus 1&4 are either wired to Line2 Ring&Tip or they are not connected.

E.g. - either there are both Lines available in Line 1 plug, then their wiring is obvious, or Line 2 Ring&Tip is not available here.

But even in the less fortunate case, it's simple to crimp necessary tool from two RJ11 male, one RJ11 female. Ask your local network administrator for help. He should be able to hack such tool for you  ...

Rate useful advices, please. It will help others to found solutions.

[Howard Wittenberg]

You can purchase a "Line Splitter/Separator/Adapter" that will separate the four wires into the center two wires or combine the two wires for a 2-wire or 4-wire RJ11 connection.

Something like this or this or this
 

[Dan Lukes]

All those you mentioned seems to be splitter. He need the coupler instead - e.g. something looking like this (I said "looking" because there's no wiring published, so I can't be sure it's what we need - but there's so little chance it's wired other way).

[micajah.vickers]

Thanks Guys, if it requires physical hardward we can get something to rig it together.

I was curious if anyone knew how to make the software do this.

on the SPA122 both Port 1 and Port 2 have 4 wires/contacts.  I know the 2nd pair could be dead, but they do exist so there is the possibility they are wired up.

But I have also not found anything specific about how to do this.

I would think it would be very very common for people to want to feed Line1+2 over one 4 wire cable to a 2 line phone system. That has to be a very common configuratoin, right?

[Dan Lukes]

I was curious if anyone knew how to make the software do this.

If the Line 2 signals are wired into 1&4 pins of Line 1 connector already, then no software is needed to do something that's already done.

If it is not physically wired, then no software can help.

There is almost no reason to make it configurable.

That has to be a very common configuratoin, right?

Hard to say - I don't know what country you are living in. In the EMEA countries no telecommunication standard expect no two lines wired into one plug. Also, 4wire cables are not so common for POTS here.

Of course, it may be necessary to couple multiple phone pairs into one cable. I'm pretty sure almost every telco - technician have required connectors as well as crimp tools ready in theirs pocket. I wish they will rather craft required coupler (it will take two minutes or so) than search if a particular device have coupled connector with nonstandard wiring ready or not.  In advance, use of standard wiring only with external coupler allow broken device to be replaced with another type one more easily (new device is not required to have nonstandard/special coupled connector of same type&wiring).

Well, all I said the above is answer to question you raised in last sentence. It have nothing to do with original question. We still don't know the Line 1 plug of SPA122 is coupled with Line 2's pair or not. Just try it - connect standard phone to 4&1 or just measure the voltage. If you will hear dial tone/measured voltage will be about 45V (in idle state) then it's coupled connector. If no dialtone/voltage then it's not coupled and I'm pretty sure no software can change it.