4S Dual Antenna GSM CDMA
I'm trying to understand how the dual antenna of the new iPhone 4S might work for me. I currently have an iPhone 3GS on Telus (a Canadian carrier that uses the HSPA network, which I beleive is a form of GSM). What I have found when I roam, is that there is poor or non-existant coverage in many rural areas (rural Montana for example). This was frustrating, because people on other cell phones (presumably CDMA phones) were able to use their phones fine at the same time as I had no service.
So my question is, if I get the iPhone 4S with the dual antennas, activate it with a GSM provider (Telus), will it be able to 'switch' to the CDMA antenna to use available CDMA signal when no GSM signal is available?
Regards,
Brian