Develop Bugs

[Q] Is it possible to disable the phone, but keep 3G on?

I want to do some video streaming, but I'm worried that if I get a phone call it could interrupt the stream. So, is it possible to turn of the phone capabilities, but keep 3G data running?

I'm not sure if you can ever really shut off the phone aspect of it, but you might be able to use some blacklisting software to have it send all phone numbers to your voicemail for a certain period.

Go to the settings and enable DDTM. That will send all incoming calls to voicemail during an active 3G session.

Thank you!!!!

[Q] Ignore calls and not drop LTE

I tether my i317 Note 2 on T-Mobile to video chat. I need LTE to video chat. Whenever I get a call, it switches to 3G and kills the video chat.
I tried "blocking mode" in settings, "ignore all numbers" in the phone settings, and both, and regardless, whenever someone calls, while it does 'block' the call (doesn't ring, immediately shows as missed) it drops LTE every time and video chat stops.
My workaround after it drops LTE because of a call is to disable mobile data for about 5 seconds, turn it back on, and hope it connects back to LTE. Most of the time it will reconnect to LTE, some of the time it will reconnect to 3G. Either way, it's driving me nuts and hurting my business.
I need the phone to stay on LTE even if someone is trying to call me. I'm thinking of changing my number to Google Voice and using forwarding to go to my phone. That way, I can disable call forwarding on Google Voice and people straight up won't be able to call my phone and disable LTE unless they randomly dial the phones random number instead of the Voice number.....kinda complicated to do that.

Stock ROM has band selection which should do the trick. It's accessible from the service menu. (I forget the dialcode, shouldn't be too hard to find))

Disable HD Voice on Lollipop?

where I am located, if I receive or make a call the HD Voice icon comes on and I am NOT able to use data at the same time. I do not know if the phone was designed this way, but does anybody know if there is a way to disable it so I don't lose LTE when I get a phone call over CDMA?

Our device/network is capable of it yet on the note 4 some older devices have two radios instead of a single

pbedard said:
Our device/network is NOT capable of it yet on the note 4 some older devices have two radios instead of a single
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Only something like VoLTE (Voice over LTE) will allow simultaneous voice and data.

GuitarJesus said:
where I am located, if I receive or make a call the HD Voice icon comes on and I am NOT able to use data at the same time. I do not know if the phone was designed this way, but does anybody know if there is a way to disable it so I don't lose LTE when I get a phone call over CDMA?
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Basically what these guys said. With the Sprint Note 4, you cannot make a phone call and use data at the same time regardless if the call is an HD voice call. The only way to make a phone call and use data is only if you are connected to Wi-Fi.

actually, I found a way around this. I enabled google voice for my sprint number, with changes my google voice to my actual sprint cell phone number. Then I use google hang outs to make phone calls. To use data instead of voice, you have to use the hangout dialer. And if you want to receive calls using data, you need to go into settings under the hangout sap, and check the box that says use hangout dialer for incoming calls. As long as the connection is -100db or better under lte and -75db or better under 3g, calls are great.

GuitarJesus said:
actually, I found a way around this. I enabled google voice for my sprint number, with changes my google voice to my actual sprint cell phone number. Then I use google hang outs to make phone calls. To use data instead of voice, you have to use the hangout dialer. And if you want to receive calls using data, you need to go into settings under the hangout sap, and check the box that says use hangout dialer for incoming calls. As long as the connection is -100db or better under lte and -75db or better under 3g, calls are great.
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Technically that doesn't allow you voice + data. It allows you voice over data ^_^. But that also means I won't be able to do things like I could with my note 3 + custom rom. Like playing pandora from my phone to my vehicle while on a call at the same time. At least not without insane buffering issues. But this is what everyone has been using anyway. Did you disable the call monitoring? That drove me nuts until I figured out what was causing it.

millerboy3 said:
Technically that doesn't allow you voice + data. It allows you voice over data ^_^. But that also means I won't be able to do things like I could with my note 3 + custom rom. Like playing pandora from my phone to my vehicle while on a call at the same time. At least not without insane buffering issues. But this is what everyone has been using anyway. Did you disable the call monitoring? That drove me nuts until I figured out what was causing it.
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You mean call screening? I absolutely did. And the nice thing is simply being able to toggle inside the settings in the Hangouts Dialer whether or not to have calls go there. That way if its a sketchy data area, I just take calls in the standard dialer so the call quality doesnt suck. It works good so far. Especially where my kids go to school while my wife is on maternity at Home. Data is good standard LTE or band 41, -80db or so, so I can talk and use the net or stream at the same time.

Missed calls not showing, and late SMS

I'm having issues when on WiFi and LTE Enabled, the phone does not get any phonecalls, missed phonecalls do not show and SMS arrive late (my carrier has the option to notify me missed calls, but yesterday the message got me 10 minutes after the call).
After searching, I've found out something similar happened to nexus 4-5, when WiFi is ON, LTE is ON, and the phone is in Sleep Mode but nothing on Zenfone 2. Have a friend with ZF2 that confirmed it happens sometimes but we doubt if it' s a phone issue or carrier issue.
Getting the network mode to 2G/3G seems to fix it, but it misses the LTE

try to restart the phone (?)

I reboot my phone every couple of days, but the bug sometimes appears in the phonecall right after rebooting

What messaging app are you using? I know I miss messages from my wife when I had textra in the "off" state with autostart manager. When I told it to start when the phone boots it started getting the text messages and mms's right away. Are you using a VPN or do you have weak signal and what firmware are you using?

make sure phone is allowed 2g/3g/4g all. If you restrict it to 4g only you will face such issues.

harpreet.s said:
make sure phone is allowed 2g/3g/4g all. If you restrict it to 4g only you will face such issues.
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I usually reboot in the mornings. But I US Google voice so the issues never really show up.

Stock FW (was on 168, now I'm yesterday patched versopm) , Stock SMS, no VPN, and set to 2G/3G/4G
As I said, the problem is fixed when I'm on 2G/3G, but it kinda loses the point to have an LTE plan

can you test with 4g on and wifi off.What carrier are you on. Because carriers can use wifi and lte combo in case you have same carrier providing both facilities.

harpreet.s said:
can you test with 4g on and wifi off.What carrier are you on. Because carriers can use wifi and lte combo in case you have same carrier providing both facilities.
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I'm on Uruguay Antel and it does not offer any combo whatsoever, voice calls are usually switched over to 3G when I'm on LTE, but somehow the network or my phone fails to switch sometimes

No internet when I'm on voice call

Hi folk, so I've something strange: when I'm on voice call (make or receive) my network change from 4G to H/H+ and internet doesn't work. When call finishes, network go back to 4G and I'm able again to surf internet.
I called my mobile company, Vodafone IT and they told me it's a phone problem (they don't use VoIP) so I contacted Google assistance but since my phone is magisked they can't help me.
Any idea?

last_nooby said:
Hi folk, so I've something strange: when I'm on voice call (make or receive) my network change from 4G to H/H+ and internet doesn't work. When call finishes, network go back to 4G and I'm able again to surf internet.
I called my mobile company, Vodafone IT and they told me it's a phone problem (they don't use VoIP) so I contacted Google assistance but since my phone is magisked they can't help me.
Any idea?
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This is a normal behavior and has nothing to do with your phone or Magisk: If your carrier does not support VoIP, the phone has to switch to 3G or even 2G to make the phone call. After the call has ended, it switches back to LTE.
I know that this can be a PITA, especially when you are supposed to take part in a Skype or Webex meeting with screen sharing and you are sitting in a hotel with bad WIFI. Then you use the phone as WIFI hotspot. As soon as you call in, your web meeting is unreliable.
Been there, done that. There is no way around this, the only thing which works for me is to take part in the call via my notebook instead of calling in via the phone. Then LTE stays - as long as nobody calls you

@BabelHuber thank you for your answer.
But why this happens?
Why isn't possible to have call and 4G/LTE at same time?

last_nooby said:
@BabelHuber thank you for your answer.
But why this happens?
Why isn't possible to have call and 4G/LTE at same time?
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Because the LTE standard simply does not support voice calls.
Hence if you don't have VoIP, the phone has to switch to 2G or 3G. The alternative would be not being able to perform voice calls at all!