Hi, sorry if this is a frequently asked question. I have a new edge and was originally on a 3g sim only plan and all was well. Last week I switched to a 4g sim only plan (BT Mobile). Since then the reception around my house has been really poor, and voice calls almost impossible.
Looking though the settings the only difference I saw was --> Network mod, changed from to WCDMA/GSM (auto connect) to LTE/WCDMA/GSM (auto connect)
If I change this setting back to WCDMA/GSM (auto connect), voice calls / reception in the house if fine (but now 4g is switched off for data).
I don't understand how to trouble shoot this. BT Mobile confirmed good 4g out doors, poor indoors for my address, but I don't understand why voice calls are not so poor. Please could anyone assist in explaining why the phone behaves this way and if it is a hardware fault or perhaps just a software / deisgn issus
Thanks
Related
So using the secret menu, I was trying different methods to see what signal strengths I was getting at my place, same spot. Interesting enough, the signal strength bars are different when using CDMA auto prl (4-bars) and EvDo only (2-bars) mode, even though I still see the 3g icon. Also, it seems the 1x radio is always on in every mode except EvDo only, plus I tried calling using all 5 modes.
Thus far, (1-yes, 0-no) I can make a call in mode:
CDMA auto PRL - 1
CDMA only - 1
EvDo only - 0
CDMA + LTE/EvDo - 1
LTE only - 1
so my question is, why can't I (and is anyone able to) make calls over EvDo only mode? When I place one, it hangs for a sec, and ends automatically saying "Call was lost". I was hoping to get better call quality (even if I can't have 4g speed), cuz right now calls sometimes sound muffled (but clear enough to understand), compared to when I had my nexus one on t-mo. (I tried eHRPD and EvDo-rev.a modes to no avail)
PS I know (atleast I read somewhere) that the T-Bolt cannot support calls over LTE itself, or VoLTE as it's called (unless if that's changed or I am wrong.)
Any thoughts? your experiences? I just want to get ppl's thoughts on this.
So... I guess no answers then?
Well, EvDO-only would not permit any voice calls because you've told the radio to only operate with a data signal. EvDO, or "Evolution-Data Optimized", is the 3G data component of CDMA wireless networks, so without a preferred network mode that includes CDMA you won't have any voice service.
when i had my phone on evdo only (stupidly thinking it was 1x) i couldn't make or receive any calls
evdo handles data, 1x handles calls/sms
squeakyl said:
when i had my phone on evdo only (stupidly thinking it was 1x) i couldn't make or receive any calls
Click to expand...
Click to collapse
Right. CDMA = 1x data and voice EVDO = data only. If you force the phone into a data only mode, voice will not function.
Hi, how to set my galaxy s2 permanently in WCDMA only Mode, not in WCDMA prefereed.
In menu option is missing.
I change WCDMA only whith *#*#4636#*#* , but to close security menu galaxy S2 auto change mode to WCDMA prefereed :crying:
how to fix it?
Madboy128 said:
Hi, how to set my galaxy s2 permanently in WCDMA only Mode, not in WCDMA prefereed.
In menu option is missing.
I change WCDMA only whith *#*#4636#*#* , but to close security menu galaxy S2 auto change mode to WCDMA prefereed :crying:
how to fix it?
Click to expand...
Click to collapse
1. Disable Mobile data, then wait for 3-5 minutes
2. Enter Service mode, then change network to WCDMA only, repeat it like 2 times.
Done.
Correctly good luck...
Enviado desde mi GT-I9100 usando Tapatalk 2
my problem is described here -Can others be so kind as to verify if they are also having an issue with receiving voice calls or SMS while their phones are using the 2G network for data access. (3G and wifi either unavailable or turned off.)
We have this issue with Orange and I have tested it on one Sunrise iphone4 and we had the same issue. Which is not surprising since Orange and Sunrise are operated by the same staff. It does work correctly over Swisscom.
I raised this case with Orange over one month ago and they still have given me no concrete feedback as to why their network behaves like this.
(FYI this is a network issue and not related to any phone configuration).
Feel free to harass Orange about this. It might get them to pull their fingers out a bit. When I raised the case it took me about 10 calls to their support plus 2 visits to Orange shops to finally get a technician who was capable of understanding this simple but critical issue.
EXACT STEPS LEADING TO PROBLEM:
1. Force phone to use GSM (2G) mode only or be in an area with no 3G coverage, or if your phone chooses to use the 2G network
2. Disable switching to wifi:
3. Connect to 2G packet data, download email or download webpages: Status Bar-> spinning wheel
4. While packet data is connecting, using another phone place a call to your phone
5. After packet data has connected, using another phone place a call to your Phone
EXPECTED OUTCOME:
You expect the packet data connection to either DROP or be SUSPENDED (depending
on network capabilities) and for the phone to ring indicating an incoming call or SMS.
ACTUAL OUTCOME:
The packet data connection persists and remains active; the phone does not ring
and the call is handled by the network as if the phone was unreachable (for most
users this means forwarding to voicemail).
REPRODUCIBILITY:
always; no exceptions.
This has been tested extensively on the Orange network by me and many other users.
Tested devices which all show the same issue, iPhone4, iPhone3GS, Iphone 3G, several Android models.
Hi All,
I just got the international Z5c, model E5823, which supports both tmo us LTE bands in my area (bands 1 and 12). When I have preferred network type set to 3G, I get more bars and have data connectivity. When I switch it to 4G, the bars go down to 1 or 2, and I get no data.
I did a logcat while switching from 3G to 4G and noticed that while switching, the icon switches between H+ and H, then eventually drops out. I'm still trying to see if there is anything useful in the logcat, but the one thing I noticed that seemed interesting was
Code:
D/StatusBar.NetworkController( 2598): updateIconSet, voice network type is: 13/LTE, data network type is: 13/LTE
To me, this looks like I might be seeing issues with some failed attempt to use voice over lte (as this phone supports it).
Regardless, does anyone know how I can disable voice over LTE? There was an option in the phone menu on the Z3 supposedly that would let you toggle, but I don't see it anywhere on this.
I'm going to be cross posting this in the sony forums as well, so if I hear back I'll post here.
Fixed it. I turned it onto 3g and selected "Internet settings" from the networking menu, which seems to have downloaded some configuration stuff from my carrier. After switching back to 4g I have fully working data.
Can anyone out there see if they get the same behavior as me?
I'm in a band 12 area, with a 4 bar LTE signal.
Wifi calling is enabled but CELLULAR PREFERRED, I'm connected to the T-Mobile ASUS router on Verizon FiOS (2.4, 5ghz, doesn't matter).
Long press 1 to get into your voicemail. What you expect to hear:
"You have no new messages in your mailbox..." is chopped off and what I hear is:
"mailbox..."
If I turn off wifi, the issue goes away. If I turn off wifi calling, the issue goes away. If I change the wifi calling setting so that it uses wifi preferred or always (so the call is an actual wifi call), the issue goes away. If I force the phone to use HSPA, the issue goes away.
So even though the call isn't a wifi call, something about wifi calling and wifi, even though the call goes through VoLTE, is causing the start of a call be be chopped off.
At this point I have disabled wifi calling on my phone.
amarryat said:
Can anyone out there see if they get the same behavior as me?
I'm in a band 12 area, with a 4 bar LTE signal.
Wifi calling is enabled but CELLULAR PREFERRED, I'm connected to the T-Mobile ASUS router on Verizon FiOS (2.4, 5ghz, doesn't matter).
Long press 1 to get into your voicemail. What you expect to hear:
"You have no new messages in your mailbox..." is chopped off and what I hear is:
"mailbox..."
If I turn off wifi, the issue goes away. If I turn off wifi calling, the issue goes away. If I change the wifi calling setting so that it uses wifi preferred or always (so the call is an actual wifi call), the issue goes away. If I force the phone to use HSPA, the issue goes away.
So even though the call isn't a wifi call, something about wifi calling and wifi, even though the call goes through VoLTE, is causing the start of a call be be chopped off.
At this point I have disabled wifi calling on my phone.
Click to expand...
Click to collapse
I have the same set up, I'll turn off WiFi and report back, as I've noticed the same issues...
Generic condescending signature line
---------- Post added at 06:36 PM ---------- Previous post was at 06:30 PM ----------
Seems better... I'll keep it like this and see...
Generic condescending signature line
My theory on what's happening here is this:
While you're telling the system too use VoLTE and setting cellular preferred, it's starting the call on Wi-Fi calling and handing off to VoLTE.
The reasoning it's simple...when on Wi-Fi, cellular data is deactivated. VoLTE depends on cellular data. When you start a call, it establishes it via Wi-Fi calling, and establishes the cellular data connection. Once that connection it's up, handover occurs, but this causes a few seconds of Audio loss because it has to set that back up.
You can see the delay yourself by turning off Wi-Fi, then turn off mobile data. Turn mobile data back on and you'll see the delay between enabling and being reconnected too the LTE network.
Hope this helps explain the issue. It's a handoff delay caused by having to reconnect mobile data and LTE, and you likely wouldn't notice for normal calls, but VM answers immediately.
Sent from my LG-H901 using Tapatalk
toastido said:
My theory on what's happening here is this:
While you're telling the system too use VoLTE and setting cellular preferred, it's starting the call on Wi-Fi calling and handing off to VoLTE.
Click to expand...
Click to collapse
I understand what you're saying and thanks for the explanation. And I realize that when wifi is on, data is going through wifi and would have to switch to LTE for a call. So this does make sense to some extent. But.... if wifi is on but wifi calling is not, the calls happen quickly and are not chopped off. But the same holds true - the data is going through wifi and would have to switch to LTE. Your reasoning explains it for wifi calls always and wifi calls never.
amarryat said:
I understand what you're saying and thanks for the explanation. And I realize that when wifi is on, data is going through wifi and would have to switch to LTE for a call. So this does make sense to some extent. But.... if wifi is on but wifi calling is not, the calls happen quickly and are not chopped off. But the same holds true - the data is going through wifi and would have to switch to LTE. Your reasoning explains it for wifi calls always and wifi calls never.
Click to expand...
Click to collapse
That's because with wifi calling ON, the call is initially set up through wifi calling, and has to hand over once the mobile data connection is up, LTE is negotiated, and VoLTE is negotiated. If wifi calling is OFF, the call is established via GSM, then (optionally, but not usually) handed over to VoLTE once LTE is up and VoLTE is negotiated.
I've done work in the industry with VoLTE, and my day job involves VoIP, so it's not as simple as one might think. Believe it or not, GSM to VoLTE handoff is much easier than WiFI calling to VoLTE. It still explains it, believe it or not, it's just a matter of which path. It's also harder to hand off from VoLTE to GSM when you roam out of a VoLTE area... which is the primary cause for VoLTE call drops.
toastido said:
Believe it or not, GSM to VoLTE handoff is much easier than WiFI calling to VoLTE.
Click to expand...
Click to collapse
Why haven't they implemented that then? That hurts them in the rootmetrics etc. scores where they'd test phone calls.
For example, band 12. You make a VoLTE call, drive to out of range of LTE and the call drops to HSPA or Edge. It nevers goes back to LTE. So when they're doing their tests, if the call switches away from LTE, then they drive to an area that is band 12, when the HSPA signal gets weak, the call gets dropped even though there's a great band 12 signal.
amarryat said:
Why haven't they implemented that then? That hurts them in the rootmetrics etc. scores where they'd test phone calls.
For example, band 12. You make a VoLTE call, drive to out of range of LTE and the call drops to HSPA or Edge. It nevers goes back to LTE. So when they're doing their tests, if the call switches away from LTE, then they drive to an area that is band 12, when the HSPA signal gets weak, the call gets dropped even though there's a great band 12 signal.
Click to expand...
Click to collapse
That's actually a great question...and unfortunately one I can't answer or even begin to speculate on...
¯\_(ツ)_/¯
Sent from my LG-H901 using Tapatalk
toastido said:
That's actually a great question...and unfortunately one I can't answer or even begin to speculate on...
¯\_(ツ)_/¯
Sent from my LG-H901 using Tapatalk
Click to expand...
Click to collapse
Back to my original point though - what I'm hearing is that this isn't unique to the V10. I'm wondering why this isn't all over the internet where people are noticing that the start of their phone call is missing when wifi calling is enabled but they've set it to cellular preferred (which is NOT the default BTW).
Hello all!
I have a Samsung A01 (SM-a015AZ) unlocked from Cricket, being used in Pakistan. Internet over LTE works perfectly, however the phone does not support VolTE and so it is only possible to send sms or call over 2g/3g. There's no problem when making a call as the phone automatically drops from LTE to 3g, however that does not happen when someone else tries to call me. The phone does not drop from LTE, nor do I even get any missed calls/sms notifications, but to the person calling me it seems like my phone is unreachable.
There are 3 options present in the preferred network mode (LTE, 3g, 2g) If I set it to 3g, all calls work fine, but with really really bad internet (EDGE). I have even tried to see if any settings in the advanced network configuration menu (By dialing *#*#4636#*#*) would make a difference, however I've had no luck so far. I would really appreciate it if someone can help me with this.
tl;dr Samsung A01 drops from LTE to 3g to make calls, however does not drop when someone else is calling and so does not receive any calls.