[dwellman]

I feel like I forgotten something I should know, but there is a way to maintain data connection when making receiving calls and texts, correct?

I thought it was DDTM but it looks like I can either send incoming calls to voice mail or let calls come in, thereby terminating my data connection-- completely.

I mean, I've noticed the network indicator switching from EV to 1xRTT any time I make / receive a phone call or send a text for a long, long while now-- even if I switch to using EVDO only.

Technical explanation for this?