My office has almost zero bar signal of Sprint, but 2~3 bars signal of Verizon. Sometimes, my phone just stuck with Sprint, and won't receive and make calls due to very bad signal.
Is there any way to hack my (rooted) sprint HTC 10 to be always voice roaming on Verizon:
I don't care about data roaming, as my office has WIFI.
I am not likely to abuse roaming, as my phone calls are scarce. But I just don't want to miss calls during emergency.
Is there a way to hack the phone, like changing the PRL or sth. But I also like the flexibility of switch back anytime as my home has normal Sprint coverage.
Thanks,
Related
Hi everyone,
I'm on a fringe coverage area with AT&T. I have a pretty new sim card, but I noticed that I get a lot of dropped calls while on 3G (or H). I usually get 1-2 bars on 3G. Shouldn't the call I'm on, hand-off to Edge if the signal is not strong enough on 3G? Right now, its dropping the call altogether on 3G with no fallback to Edge. Is the Xperia's radio to blame for this?
Thanks!
i dont know who is to blame but if your on the fringe as you say, you should just manually set your device to use edge/gsm.
it will save on your battery and have less dropped calls. otherwise, you phone will keep bouncing between signals.
i also have the same problem and i am curious of the answer i dont want to lose 3g all together but i have 1 bar in my house and drop calls also.
Has anyone on AT&T tried to flash their xperia with the Raphael radio? Is the signal alot better?
not just exactly the same problem here, but similar (according to the network). at home, i have no 3g coverage and manage to get edge at best, problem is intermitantly my voice stops, even though i can here the other caller perfectly, the phone still keeps between 2-3 bars of signal, and i can even stay on the call over 30 seconds after it happens. the other caller can just hear like a dead noise. the network has me testing the 3g thing for the next couple of days though.
PS. this also happened with a K850i and a K800i
My office has a cell phone repeater that for some reason only repeats VZW and ATT signals. My phone tries like hell to hang on to the weak Sprint signal, but when it picks up the repeater signal I have full bars. Is there any way to make it prefer the higher power signal regardless of which provider it's coming from (whatever that might involve)?
You could try this:
http://forum.xda-developers.com/showthread.php?t=696073
I tried it, and it worked well, but sprint date speeds are better in my area, I get full bars on sprint and verizon, just take your pick.
And this is a verrrry easy hack to do, it only takes a few seconds to switch back and forth once you get you msl password.
I got an email while on a call without wifi. I'm in dallas. Anyone else getting data and voice now?
Has been possible since the beginning of time as long as you are on 3G
I concur. ↑
Sent from my Nexus One using XDA App
Really? I've never been able to do that until recently.
Usually when I'd start a call I'd lose the 3G icon and if I received email while in call it wouldn't show up until after I hung up.
Couldn't mess with data without wifi.
Used to do this on my cliq and G1 as well...
Odd.
Also been doing both (on TMob 3G) since February...
Any gsm phone can do that, but it is impossible for cdma
Your phone may have been set to WCDMA only up until now.
chalk that up as a win for GSM and a lose for CDMA
JCopernicus said:
Your phone may have been set to WCDMA only up until now.
Click to expand...
Click to collapse
WCDMA is 3G, it has nothing to do with CDMA
In a weak 3G signal area, the phone usually does a handover and transfers the call to the GSM network when the 3G signal falls under some threshold, and GSM doesn't support simultaneous voice and data (icon disappears while on a call)
maybe you have better 3G coverage now and your nexus doesn't need to go the GSM route
I've noticed problems with using data and voice together too. What seems to happen is that it works ok at first, but the instant you lose 3G it never comes back until the call is over, no matter how good your signal. Very frustrating when trying to use your data while on a long call.
Both AT&T and T-Mobile (as can any GSM carrier worldwide) can do voice and data at the same time as long as your phone has a "3G" connection visible while on the phone call. This has always been possible.
What you may see happen is that if you wrap your hands around the bottom of the phone during a call, the signal may drop to "E" or Edge. You can't use data and voice at the same time if your phone is on Edge.
To alleviate this, use a wired or Bluetooth headset, or hold the phone with your fingers rather than your whole palm.
Paul22000 said:
What you may see happen is that if you wrap your hands around the bottom of the phone during a call, the signal may drop to "E" or Edge. You can't use data and voice at the same time if your phone is on Edge.
Click to expand...
Click to collapse
Have you ever seen my problem where once the signal drops to Edge it will never go back to 3G? It doesn't seem like normal behavior to me but it seems to always happen when I need my data during the call. I've been stuck on multi-hour calls where my phone refused to go back to 3G almost from the beginning, and then the second I hang up the phone goes right back to a 3G signal with full bars again. Very frustrating!
pfmiller said:
I've noticed problems with using data and voice together too. What seems to happen is that it works ok at first, but the instant you lose 3G it never comes back until the call is over, no matter how good your signal. Very frustrating when trying to use your data while on a long call.
Click to expand...
Click to collapse
the ATT 3G network is not setup to do handoffs from gsm back to 3g. it currently will ONLY handoff from 3G to gsm during a call, and if you are still on your call, it will not switch back until you hang up. in the future this can be enabled both ways. tmobile apparently is setup the same way for now. so you're experience is normal until they reconfigure their network.
Actually it depends on the phone hardware. It IS possible to use GPRS and voice as well if the hardware supports it, its not only something available on 3G/UMTS/WCDMA. There is a pretty even split between class A and class B phones these days, you should look up the specs of the phone you're using.
Nearly all 3G devices allow you to use data and voice together since it isnt timeslot based and so voice and data is logically split and not time divided. This means you dont need specially designed hardware to do it, just the processing power to do it.
Class A
Can be connected to GPRS service and GSM service (voice, SMS), using both at the same time.
Class B
Can be connected to GPRS service and GSM service (voice, SMS), but using only one or the other at a given time. During GSM service (voice call or SMS), GPRS service is suspended, and then resumed automatically after the GSM service (voice call or SMS) has concluded.
Class C
Are connected to either GPRS service or GSM service (voice, SMS). Must be switched manually between one or the other service.
@kam187, thanks for that. I've been with T-Mobile since they were Voicestream, about 10 years now. And I thought I was making voice and data connections with my Nokia phone years ago, before their 3G rollout.
Here is the last phone I used before going the G1 route.
http://www.gsmarena.com/nokia_e61-1322.php
Yep E61 is on nokia's list of Class A devices:
http://wiki.forum.nokia.com/index.p...s_supporting_GPRS_Class_A_(Dual_Transfer_Mode)
Has anyone experienced this before? I seem to loose 3G connectivity while talking on a call. I can keep talking... but the 3G icon disappears and I see an alert icon notifying me that I've lose data connectivity.
This doesn't happen all the time, but quite often. Sometimes, the icon with signal bars will have a small 'R' at the top left indicating that I may be in Roaming mode.
I've got the ATT Nexus One with Bell Mobility as my carrier (Canada). They have a pure HSDPA network with no 2G fall back, so I'm not sure how I could lose 3G and still be on the call... I've got 2.2.1 FRG83 with Stock Android and the phone is NOT rooted.
Any suggestions? Should I reapply FRG83 -- or the entire stock android image (is this even possible on a non-rooted phone)?
Not sure if this is the same, as I never go into Roaming mode... but I routinely lose my data connection while making phone calls. I'm on T-mobile, btw.
Is this something normal? Have you just ended up living with it?
I'm slightly concerned about missing an email or SMS during a call if data connectivity is lost. Although, I don't think that data is truly lost as Bell Mobility only has a 3G network, there is no 2G to fall back on...
Are you sure you're not roaming over other networks? I'm sure you are switched to another network, and the data is dropped because Android has a switch to turn off data (which has nothing to do with SMS, by the way) when roaming, and this switch is on by default.
When the data is dropped, I believe it's not re-negotiated until the end of your conversation, so if you're switched to a roaming cell tower for even a second - your data is gone until the end of your call.
If your cellular carrier has agreement with other carrier's cell towers and they accept roaming (which is sometimes the case, as I've learned from this forum) - you should turn that switch off to retain data even when roaming.
I'm running CM7 7.1-RC1 (and earlier nightlies). In Settings, under Wireless & network settings, Mobile networks, Network Operators, I selected the one available where I currently am ("ROAMING"). I got the R above the cellular signal strength bars. Below the quick action icons when I swipe down Notifications is "ROAMING".
Now I want to turn off (voice) roaming but can't figure out how to do that. I don't want to pay roaming costs (any idea if T-Mobile will charge roaming costs? I want to be able to control it regardless.). Also, is there a way to turn off the cellular radio but leave GPS and WiFi on?
I'm not talking about data roaming, but in the Mobile network settings I have everything unchecked (Data enabled, International data roaming, National data roaming, Use only 2G networks).
In Notifications is a bang in a triangle "International data roaming" and "You have lost data connectitivity because..." (I can't read it all, tapping doesn't show anything making the notification a bit useless).
Under APNs I have the choice between Simple and T-Mobile US, the later is chosen.
When WiFi calling is active, the radio strength shows just gray bars (no x, no R). Of course that is only good if I'm at the hotel!
Airplane mode isn't a good option, but thanks for suggesting it.
excarnate said:
...any idea if T-Mobile will charge roaming costs?
Click to expand...
Click to collapse
I finally got through to T-Mobile (40 minutes wait time? They must be preparing for the purchase by AT&T by lowering their standards). The rep (who was OK) had to put me on hold twice and check on things, but eventually he came back and let me know that if there is no T-Mobile service, then there are no roaming fees (note: inside the US for a US customer). So I just have to make sure that T-Mobile is preferred. I hope this helps someone!
All my other previous questions still stand, but add these: How, in CM7, do I make sure that my provider is preferred for voice? For data?
I find these areas a bit weak, which likely is very stock Android, so would I file a feature request against Google or Cyanogen or both? Or maybe someone has (please provide the # or URL!)?
Your phone will always default to the most powerful signal, whether that's with a stock MT4G or one with a custom ROM. T-mobile has no charge for roaming, data or voice, in the US. You're making making a mountain out of a mole hill.
kalel33 said:
Your phone will always default to the most powerful signal, whether that's with a stock MT4G or one with a custom ROM.
Click to expand...
Click to collapse
Although you carefully didn't answer any of my remaining questions, by implication you are saying that I can not have control over the signal. Which doesn't match my experience where it would not choose roaming until selected the first time.
T-mobile has no charge for roaming, data or voice, in the US.
Click to expand...
Click to collapse
Which is what I said in my second post.
You're making making a mountain out of a mole hill.
Click to expand...
Click to collapse
Typically that idiom means you are making a mountain out of mole hill knowing the facts, which I didn't til the time of my second post, so really it sounds to me like an unnwarranted slam.
excarnate said:
Although you carefully didn't answer any of my remaining questions, by implication you are saying that I can not have control over the signal. Which doesn't match my experience where it would not choose roaming until selected the first time.
Click to expand...
Click to collapse
Alright, I'll answer them. You asked how you can set to not roam on voice or data. Voice, there is no way to keep it from roaming. You can go in and do a manual network selection, but the next time it comes to a roaming tower that has a more powerful signal then it will jump to it. On the data, you can only tell the phone to not roam on other's towers but you cannot set it to where it always chooses a lower signal T-mobile tower over a stronger signal roaming tower. Which means that if you set it to not roam on data then if your phone connects up the stronger signal that happens to be a roaming partner then you won't get any data connection, even if there is a T-mobile tower available. The phone just chooses the strongest symbol.