Wow….after tinkering for days as time allowed to leverage the capabilities of SipGate, GoogleVoice, Xlite, MagicJack, an IP Phone on the Cisco UC520W, I was able to successfully test a couple of different configurations for inbound & outbound calling on both SIP (free) and PSTN (ATT & MagicJack) trunks playing with various features such as call forwarding, simultaneous ring, text-to-speech, voicemail, automated attendant, etc. using my cell phone, cordless landline phone, and IP Phone (desktop and softphone). Now my mind compels me to get ‘creative’ with the phone system…uh oh!