I am trying to switch two of three phone lines in a very large, very
> old house over to VoIP. The house has quite literally twenty
> extensions split between the three lines -- I think I need at least 4
> or 5 REN per line, plus the ability to drive all the wire leading to
> those handsets (over 100' in some cases) without exploding the audio
> output circuit in the ATA.
> Does anyone make equipment meant for this that I can use with a
> mainstream VoIP provider? It's been suggested to me that Packet8
> might be my best chance since they build their own gear but I don't
> see anything suitable on their web site.
> I am basically looking for a Cisco ATA-186 (including the 2-line
> capability) on steroids.
You might want to try something like a REN extender or two. An example of one can (Viking RG-10A) be found at:
It claims to boost the ring signal to 15 REN and should work with what ever brand of VOIP interface you have as long as it will already ring a single phone instrument correctly.