can you connect to a dial up ISP with a VoIP cable modem?

[Lifer]

posted in networking but with no replies.

can you plug a POTS modem into the rj11 port of the VoIP modem and dial out to a dial-up ISP?

not that you'd want to since you have high speed cable for internet, but sometimes you might need another IP address?
but if you wanted to you, could you?

 

[Soybomb]

It works for some people, others have problems with it. Presumably it all depends on the voip system. Many people also experience additional latency when doing so. I'd say its a roll of the dice and may not be fast.

 

[Lifer]

has anyone personally tried it?