I work on 180 St and 102 Avenue area. Lucky to complete a call there too. Have had three different phones, and no difference with any of them. I feel like the "Can you hear me now?" guy.
I might have to start driving there to use my phone. I live just a few km east of Sherwood Park, and am lucky to complete any phone calls. It's awesome too, as I can see a tower from my house.
I've moved things up a notch! I got ahold of a couple older Polaris 500's. The family and I have a lot of fun on them. Lots of tearing around the fields here. Then got ahold of a newer Mountain Cat 900. Now it's off to the big hills! Wish I'd started doing this a long time ago. Gotta get...
Are you using lithium batteries? If not, I'd recommend them. I've had the same problem with my cam, but only would work for five seconds (with NMiH or alkaline batteries) in cold weather. Lithium works best, imho. Hope that works for you!