i have a htc evo phone with at&t service provider . i am not happy with the service the signal strength is very weak at my work place . first my colleague told me to buy a signal strength booster for cell phone but as i am not happy with other service of at&t also . so i decided to buy a verizon connection . so i want to know whether verizon service with iphone is correct or not . is there any problem of signal strength with verizon service provider .