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I have an AT&T Merlin Plus 820D Control Unit. Can I add VOIP lines to the phone call switch? In other words, can a phone call be transferred to a VOIP phone line? How do you set up? Thanks!

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A manual for your unit can be found here.

This guy was built way before VOIP was ever a consideration. It won't support VOIP switching natively.

You would need a VOIP gateway to do the conversion between digital (your VOIP lines) and analog (your Merlin lines).

Posted on Feb 28, 2008

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Posted on Feb 28, 2008

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