Re: Verizon Calls on DCD 3.3.4
EVDO stands for "Evolution, Data Only" or "Evolution, Data Optimized" (depending on who you ask), but either way, the name tells the tale. The EVDO protocol supports data transmissions only.
So, it is completely normal that your phone will switch from EV to 1X when making phone calls, since EVDO does not handle voice transmissions.
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