I like Gigaset kit because of it's easy setup and flexibility. Mine is setup with 3 VoIP "lines" and a landline. Ok, having 3 VoIP numbers means a bit of configuration on the base station and router but it all works very well.
Why on the router? Is it just to open ports or more? Base station config is quite easy, even as far as deciding which line to which handset, which to dial out on and which of the three voicemails to use for each line.
I have three VOIP circuits, one with two incoming numbers, too and like you find it works well. It even presents an identifier on the dual circuit as to which incoming number it is. Did have a glitch on Monday night/Tuesday morning when it did a time sync and for some reason went to February 2036!
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