7520 and sprint relay customer service question
The big reason to have the blackberry plan is to have your emails "pushed' to your device. You wont be able to register for that service with out a BB plan and device registry. So no you don't "have to" have a BlackBerry plan. But it sure helps with certain aps. BTW you can get a data only Black Berry plan as well, so you won't have to pay for voice service.
hope that helps.
btw the Sprint party line is, "yes you have to have a BlackBerry plan"
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