Hi, I'm planning on getting the HTC Sensation Z710A with Straight Talk. Do I have to use the sim card from a Straight Talk phone or can i just purchase an at&t compatible sim card from their website? Also, will i be getting edge speed if I were to use this phone with Straight Talk?
Does that also mean that I can use it without unlocking my phone?
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You unlock a T-Mobile phone to use it with AT&T service. BUT, it must possess the frequencies AT&T uses.
You unlock an AT&T phone to use it with T-Mobile service. BUT, it must possess the frequencies T-Mobile uses.