I'm looking for a phone gadget:
2 lines in
1 line out to phone {or fax..}
Incoming calls from Line A got to phone. Incoming calls from Line B do NOT ring through. Outgoing calls will pick up Line B, not A.
Why? A is a basic line for fax; B is a voice line with an outgoing calling plan. Want to use it for faxes as well.
RadiosHack made similar devices but not [AFAIK] exactly the right one.