Which Telephone Line is this?


Old 10-22-13, 08:50 AM
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Which Telephone Line is this?

I have multiple phone lines coming in and over the years have wired additional phone jacks. I suspect that some of the wiring is not what was intended (like I might have used a red/green to pull off of a yellow/black pair when putting in a new jack, so I can't just go by the wire colors any more). I have a very old memory that says I should be able to plug in a wired phone to a jack and dial a specific number which will result in the central office telling me what line number I am calling from. Do any of you remember the dialing code(s) for this? I think that there is a different set of codes for determining the long distance company name as well; anyone know that dial code? Thanks, in advance, for your help.
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Old 10-22-13, 09:15 AM
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If you are in a Verizon area you could try 958.
That only works on the older, standard lines..... not FiOS.

Since a lot of my work is done within the FiOS area as well as VoIP (cable company phone service is one type) I go to the phone in question and dial my cell phone. The number of the line that that phone is connected to will come up on the caller ID screen.

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