Develop Bugs

3g Tether problem

So I have a problem with one of my EVO not receiving calls while tethering on 3g. Can make a call.. but the person won't receive my call. Data seem to not get cut off.... I checked if DDTM was on it wasn't.
any help would be great

Umm, you can't make or receive calls while using 3g. They use the same radio.

You have to be using wifi or 4G. Can't make a call and have 3G on at the same time, as its the same radio.

I understand they are on the same radio. But from what I know, if you are on 3g and you receive a call. The data pause and resume when the call is done. My problem is the data doesn't pause. Same goes when I try to make a call.

if your rooted and have a custom rom i'd flash back to stock, then flash your rom again.

the evo is on stock 2.3 rom

[Q] Data Access While On Calls

Does anyone know if there is a way to access data while on a call with the Evo 4G at this point? I would love to be able to do that..my wife has a iPhone 4 and the only thing I hate is that she's able to use her data services while on a call!! Got Dang ATT!!

Unfortunately, no. It is a limit of currently used CDMA technologies. The iPhone and other AT&T and T-Mobile are capable of simultaneous data and voice because of GSM technology.
You can use data during a call if you are using VOIP to call, or connected to 4G or W-Fi.
Sent from my HTC Evo using xda premium

Unless u are on wifi or 4g then no...for now. With this rev b channel sprint may go to you will be able to! We find out in October.

The answer is yes you can access data on 4g and wifi while in a phone call
Sent from my Evo using XDA App

You can only talk and surf if you're on wifi or 4G, as the call and 3G radio are the same; limitation of cdma technology.

no 3g/4g while calling... normal or weird?(cdma)

So everytime I call someone or receive a call,
the 3g on the status bar disappears instantly.
right after I end the call,
I have signal again immediately.
is this suppose to happen to Verizon phones?
I'm confused because I came from at&t. never had such thing on it.
So is Verizon suppose to be like this?
if so is there any mod/tweak that enables me to use data while calling?
Sent from my Galaxy Nexus using XDA

bluemoon1221 said:
So everytime I call someone or receive a call,
the 3g on the status bar disappears instantly.
right after I end the call,
I have signal again immediately.
is this suppose to happen to Verizon phones?
I'm confused because I came from at&t. never had such thing on it.
So is Verizon suppose to be like this?
if so is there any mod/tweak that enables me to use data while calling?
Sent from my Galaxy Nexus using XDA
Click to expand...
Click to collapse
Yes, this is supposed to happen. You can't do voice + data over 3g, but you can do voice + data over 4g. There is no "mod" available for that will enable the use of data while in a call on 3g.

Verizon is CDMA, which doesn't offer simultaneous voice/data like GSM does. Unless your phone has SVDO (like the Thunderbolt) it won't do data and talk at the same time over 3G... The VZW GNex doesn't have SVDO.
For the longest time this has been a pain for CDMA carriers (the few that are left) and they're gonna get past it with VoLTE eventually. You'll still see AT&T run ads comparing their iPhone to the VZW iPhone because it can do voice+data at the same time.
If you're on LTE, you can browse LTE data and talk on 3G at the same time, however.

maguro user here. i was talking about this with a work colleague yesterday, and i said data didn't work at the same time as voice, only with gprs/edge. he had me call his cellphone, while on UMTS/3g/H, and data call was still on as i made the call, and let the phone ring a few times.

When I am in a phone call I cannot use LTE?

Why does this occur? It switches my data to 3G when I'm in a phone call.
Sent from my LG-E980 using Tapatalk

rjmxtech said:
Why does this occur? It switches my data to 3G when I'm in a phone call.
Sent from my LG-E980 using Tapatalk
Click to expand...
Click to collapse
AT&T uses HSPA or 3G for voice calls, LTE migration for voice will come eventually but for now every time you receive a phone call or make one, your phone will switch to 3G and then switch back to LTE when the call is terminated. If you want to multitask while on the phone you will do it at a slower data rate.
Erik (an att technician)

ricco333 said:
AT&T uses HSPA or 3G for voice calls, LTE migration for voice will come eventually but for now every time you receive a phone call or make one, your phone will switch to 3G and then switch back to LTE when the call is terminated. If you want to multitask while on the phone you will do it at a slower data rate.
Erik (an att technician)
Click to expand...
Click to collapse
This makes sense. I thought it may have been something along these lines. Thanks for the help. I appreciate it.

T-Mobile HD voice

Yesterday I was able to see the HD voice icon when calling another T-Mobile person. However today it won't show up even though the other person see the icon on their end. Also noticed that sometimes when I call my phone switched from LTE to HSPA+. Anyone seeing this?
Sent from my Nexus 5X using Tapatalk

I think that stock Android doesn't play 100% with T-Mobile's network features. I have WiFi calling on and I have the Asus router from T-Mobile for WiFi calling and half the time the phone doesn't say "T-Mobile WiFi calling".
I pretty consistently get the HD badge when making calls, but I don't look every time I can either.
I will say this though, VoLTE seems to be playing nice for me and isn't draining the battery like it did on my S6 edge.

So I think it is just the software. To fix it, you can go to the "cellular network" and disabled the enhanced 4g voice then make a call then hang up then turn the enhanced 4g voice back on. Now the HD icon should return.
However even if the icon is not on, I noticed on my wife's phone it is still HD so it is just the software that is a bit screw up.
Sent from my Nexus 5X using Tapatalk