Currently, my business has a DSL Internet service and analog landline service from Verizon. I have one Panasonic desk phone (bluetooth equipped), three cordless extensions, and a new Brother fax machine. I plan to get Comcast Business starter internet (25 MB) and my own cable modem. I would like transfer my landline to Google Voice to use as my business number. Which of your products would work for my situation? I was hoping to use the Obi302 to use my existing analog phone and fax machine. Thanks for any help you can provide.