Outgoing calls use 1x, not EvOD

eduncan911 · #1 (**permalink**) 10-15-2010, 06:08 PM

I've noticed on a number of ROMs that when I place an outgoing call, it drops to 1x on the connection.

When idle, it sits on Ev for the EvOD.

Is this normal operation on our phones?

Thanks,
-E

LuckyLui · #2 (**permalink**) 10-15-2010, 06:10 PM

Mite be how the dev made the rom..1x is for when data is sent like a txt and evdo is on standby..

Sent from my phone... I think Tapatalk??

tlhop911 · #3 (**permalink**) 10-15-2010, 10:07 PM

1x and EVDO are for data and not voice

jaqual · #4 (**permalink**) 10-16-2010, 12:34 AM

Wirelessly posted (Touch Pro: Opera/9.80 (Windows Mobile; Opera Mini/5.1.21594/20.2497; U; en) Presto/2.5.25)

1X and EVDO are indeed data connection indicators. CDMA phones do not have the capability of using EVDO while in a voice call, so it drops to 1X during a call. It always does so, but depending on which ROM you use, it might not show it doing so, but that is how it works. That's why GSM providers advertise surfing while on the phone.

eduncan911 · #5 (**permalink**) 10-16-2010, 08:59 AM

Ah. That makes sense.

So if it drops to 1x while on a call, does that mean we can have a data connection while on voice?

I've always received txt messages while on a voice call (as you said above, txt uses 1x as well). That makes sense.

Yeah, I envy my iPhone co-workers that say, "Hold on, let me forwarwd that email to you. Ok, you should have it now." Blah.

sfhub · #6 (**permalink**) 10-16-2010, 12:42 PM

I think there are 2 separate issues.

1) EVDO (Evolution Data-Only) does not implement voice, only data. That is why you drop into 1x.

2) CDMA from your carrier does not support simultaneous VOICE/DATA (irrespective of EVDO). You can choose to have DATA interrupted by incoming calls or have incoming calls get sent to voicemail if a data connection is running.