Is this unit capable of handling more than one phone on each channel?

What I am interested in doing is having channel one ring on 2 phones and have channel 2 ring on 2 other phones. I just need to know if this will overload the unit in any way or if it will still work properly. The main reason I am looking to do this is because it is sometimes hard to get to the one phone that is ringing and if it can ring in multiple locations.

Yes, you can use a phone line splitter and connect the voip channels to two phones instead of one.