Related
Ok guys, i need some of you to do a bit of testing for me, here is my problem:
When my 3.5G (HSDPA) Data connection is active I cannot make or recieve phone calls.Any incoming call goes straight to voicemail and any number I dial the phone will display "call ended" before it even starts to to ring. The minute I close the data connection the phone works again.
I have done a lot of searching on net and in this forum, some other member are having the same problem. But i think it's only with vodafone, T-mobile don't seems to have this problem. What T-mobile do is to disconnect the data transfer ot reduce it to only 3G while calls comes in. BUt vodafone don't do that, it receive phones ok when in 3g mode but no ok in 3.5g at all. It doesn't switch itself.
So please if you have a vodafone and Athena, try go to Internet, and make sure it's 3.5G, while data is transferring, make a phone call to yourself and see whether it gone through. Please can t-mobile user test it and confirm it does work on your device as well. Thanks
If it's vodafone's problem.....i will have a very long call with them tomorrow then
p.s. Please make sure you test it "WHILE" the data transfer is active, so e.g. open up a site in Opera, while is loading, make the phone call, i am guessing for T-mobile, it should switch from 3.5G to 3G to enable to call comes in, but for Vodafone, it won't do that and will just reject the call!!!
Thanks in advance!!!
This is the same with all 3.5G devices... Its a problem with the Vodafone HSDPA network.
I was reading about people who purchased a Nokia n95 and got a insert in their box advising that if they experiance problems with in/outbound calls to switch to 3G or GSM!
The only difference between tmob and vodafone is the hardware in the network. tmob is running Nokia HSDPA hardware/software and vodafone use erricson.
My advise it to use the bandswitch application which allows you to turn on HSDPA when needed keeping your device in gsm mode the rest of the time. It will also increase your battery life.
doedoe said:
This is the same with all 3.5G devices... Its a problem with the Vodafone HSDPA network.
I was reading about people who purchased a Nokia n95 and got a insert in their box advising that if they experiance problems with in/outbound calls to switch to 3G or GSM!
The only difference between tmob and vodafone is the hardware in the network. tmob is running Nokia HSDPA hardware/software and vodafone use erricson.
My advise it to use the bandswitch application which allows you to turn on HSDPA when needed keeping your device in gsm mode the rest of the time. It will also increase your battery life.
Click to expand...
Click to collapse
which application will you suggest? btw this is very very bad for me since i use emoze which is a push mail application, my connection to internet is always on, and it always runs at the highest speed (which is HSDPA). Therefore if i have this application open (must do if i want my mail to get push in), then i can't receive phone calls.......
Looks like T-mobile's one is much better in this case, wonder what they whill say when i phone up tomorrow. I think this is quite a serious problem, while you are tramsmitting data ( e.g. liveTV, liveRadio, push mail, downloading, browsing.......)the phone won't work!!!!
I will have a long discussion about this with Vodafone tomorrow and see whether they can cancel my contract......
So T-mobile one will switch itself from 3.5 G to 3G while call comes in?
HSDPA
Hello
I'm using at the moment 3G can someone tell me if I buy the HTC Advantage well it support HSDPA.
If it does how do I activate it do I need a new sim card or do I call Vodafone which is my service provider to activate the feature.
Thanks
Gigino
gigino said:
Hello
I'm using at the moment 3G can someone tell me if I buy the HTC Advantage well it support HSDPA.
If it does how do I activate it do I need a new sim card or do I call Vodafone which is my service provider to activate the feature.
Thanks
Gigino
Click to expand...
Click to collapse
your question is a bit out of the topic, anyway, of course Advantage support HSDPA, most of the sim card already 3G capable, if some reason you have the old type of sim card, then request a new one. You can tell when you connect your device which type of service you are getting. For vodafone you do not need to activate it, it's already been activate.
Try this: http://forum.xda-developers.com/showthread.php?t=286844&highlight=today+plugin+band
or
this: http://forum.xda-developers.com/showthread.php?t=299070&highlight=today+plugin+band
Personally, I would use the first link
doedoe said:
Try this: http://forum.xda-developers.com/showthread.php?t=286844&highlight=today+plugin+band
or
this: http://forum.xda-developers.com/showthread.php?t=299070&highlight=today+plugin+band
Personally, I would use the first link
Click to expand...
Click to collapse
right, thanks for that, i have notice about this application too but don't think is much help here. Basically what i want to do is let my device automatically change from 3.5G to 3G when calls comes in, this program doesn't allow you to do that. It can manually swtich between 3G and GPRS, but not from 3.5G to 3G and not automatically as well.
So here is the situation when you will face problem, if you are using vodafone, and your device is 3.5 capable. When you are browsing on the net, or listen to live radio, or watch live TV, or do PUSH mail, of course you want it to the highest speed and it require you to have continues data transmission, so while you are doing that, you won't be able to receive any phone call at all, it will all goes into your voice message. HENCE you will miss a lot of calls !
From how i see it, this issue is big. And big enough for me to have a long chat with Vodafone and possibility change to T-mobile.
So before i do that, i need to make sure three things, for vodafone user, do you have the same problem? and for t-mobile user, do you NOT have this problem. Is there any ways to fix this?
My contract cancellation fee is about £350 so i need to make sure T-mobile one works before i go ahead, thanks for the help guys.
wu5262 said:
right, thanks for that, i have notice about this application too but don't think is much help here. Basically what i want to do is let my device automatically change from 3.5G to 3G when calls comes in, this program doesn't allow you to do that. It can manually swtich between 3G and GPRS, but not from 3.5G to 3G and not automatically as well.
So here is the situation when you will face problem, if you are using vodafone, and your device is 3.5 capable. When you are browsing on the net, or listen to live radio, or watch live TV, or do PUSH mail, of course you want it to the highest speed and it require you to have continues data transmission, so while you are doing that, you won't be able to receive any phone call at all, it will all goes into your voice message. HENCE you will miss a lot of calls !
From how i see it, this issue is big. And big enough for me to have a long chat with Vodafone and possibility change to T-mobile.
So before i do that, i need to make sure three things, for vodafone user, do you have the same problem? and for t-mobile user, do you NOT have this problem. Is there any ways to fix this?
My contract cancellation fee is about £350 so i need to make sure T-mobile one works before i go ahead, thanks for the help guys.
Click to expand...
Click to collapse
Hey Wu.
I'm with T-Mob and whilst I can receive and make calls whilst surfing or downloading (so presumably Push e-mail aswell), it is not always as reliable as I would like it to be.
It does work and generally allows simultaneous voice and data transmission, but for some reason it sometimes (only on occasion) will 'pause' the internet/data transmission (specifically download) and break the data connection to allow voice calls but automatically resume the data connection straight after the call.
It's a bit confusing sometimes....but that could be due to not knowing whether I'm on HSDPA or 3G at the time?!?
In any event, it does support the two simultaneously and switching is definitely automatic.
I'd go the T-Mobile route if I were you, If the switch is not too costly for you.
mackaby007 said:
Hey Wu.
I'm with T-Mob and whilst I can receive and make calls whilst surfing or downloading (so presumably Push e-mail aswell), it is not always as reliable as I would like it to be.
It does work and generally allows simultaneous voice and data transmission, but for some reason it sometimes (only on occasion) will 'pause' the internet/data transmission (specifically download) and break the data connection to allow voice calls but automatically resume the data connection straight after the call.
It's a bit confusing sometimes....but that could be due to not knowing whether I'm on HSDPA or 3G at the time?!?
In any event, it does support the two simultaneously and switching is definitely automatic.
I'd go the T-Mobile route if I were you, If the switch is not too costly for you.
Click to expand...
Click to collapse
well, switch is very costly......£350. Once thing you need to make sure is whether you are on HSDPA or 3G, because in 3G, you can have voice and data at the same time with no problem, but in HSDPA, you can't, but even that, the best solution (i think it's the T-mobile solution) is when calls comes in, drop the data speed to 3G to allow calls to comes in, once calls finish, bring up the speed to HSDPA, this case you don't miss any calls. Apparently, this isn't the Vodafone way, for Vodafone, if you are on HSDPA, the system simply don't do anything therefore you miss all your calls.....
Today i have been testing push mail, looks like Microsoft knows this issue too so whey they only boost up to HSDPA when checking mail with server, once it's finish, it's drop to 3G again. So direct push is ok.
But there are some other third party software (most of them!!) which doesn't do this, therefore you will just simply miss the call.
e.g. If you are browsing internet, while the internet is loading, you will just miss all your calls.
I kind of need someone with vodafone to confirm this behavior, but i am 80% sure i am correct, therefore i will call them up tomorrow and see what they say.
Wich part of Vodafone has got HSDPA??? I thought it's standart UMTS (384kbps)???
vasil said:
Wich part of Vodafone has got HSDPA??? I thought it's standart UMTS (384kbps)???
Click to expand...
Click to collapse
quite a lot of places got HSDPA already, most of the London at least, i did a speed test yesterday and i am getting 1.3Mbps (1300kbps). very fast indeed but useless if we keep missing calls......
wu5262 said:
Ok guys, i need some of you to do a bit of testing for me, here is my problem:
When my 3.5G (HSDPA) Data connection is active I cannot make or recieve phone calls.Any incoming call goes straight to voicemail and any number I dial the phone will display "call ended" before it even starts to to ring. The minute I close the data connection the phone works again.
I have done a lot of searching on net and in this forum, some other member are having the same problem. But i think it's only with vodafone, T-mobile don't seems to have this problem. What T-mobile do is to disconnect the data transfer ot reduce it to only 3G while calls comes in. BUt vodafone don't do that, it receive phones ok when in 3g mode but no ok in 3.5g at all. It doesn't switch itself.
So please if you have a vodafone and Athena, try go to Internet, and make sure it's 3.5G, while data is transferring, make a phone call to yourself and see whether it gone through. Please can t-mobile user test it and confirm it does work on your device as well. Thanks
If it's vodafone's problem.....i will have a very long call with them tomorrow then
p.s. Please make sure you test it "WHILE" the data transfer is active, so e.g. open up a site in Opera, while is loading, make the phone call, i am guessing for T-mobile, it should switch from 3.5G to 3G to enable to call comes in, but for Vodafone, it won't do that and will just reject the call!!!
Thanks in advance!!!
Click to expand...
Click to collapse
I have tested on 3 Hong Kong using 3.5G, I was downloading a 6M file using ftp client and the transfer rate > 100kByte/s (so it must be using HSDPA) and the indicator shows "H" instead of "3G", I made a call from my other phone and it rings! So i guess it's the Vodafone problem instead of U1000.
Tommy
tommy1971 said:
I have tested on 3 Hong Kong using 3.5G, I was downloading a 6M file using ftp client and the transfer rate > 100kByte/s (so it must be using HSDPA) and the indicator shows "H" instead of "3G", I made a call from my other phone and it rings! So i guess it's the Vodafone problem instead of U1000.
Tommy
Click to expand...
Click to collapse
yes i am guessing the same too.......thanks for your help, now we just need one more Vodafone UK user to confirm this.
slightly ot but I wonder is vodafones issue simliar using the three (uk or ie) networks?
ANyone using Advantage or similar model with the three HSDPA network?
it would certainly give me food for thought before my purchase..
weareborg said:
slightly ot but I wonder is vodafones issue simliar using the three (uk or ie) networks?
ANyone using Advantage or similar model with the three HSDPA network?
it would certainly give me food for thought before my purchase..
Click to expand...
Click to collapse
i doubt Vodafone is the only one, basically is to do with their network hardware and protocol, if other company uses the same, you will be in the same situation with me. I have heard member here report that some operation in Asia and Europe acting the same, so once again, it's not just Vodafone (i think).
Same problem with Three in Sweden...
and I´m pretty sure that they are using Ericsson equipment here. Anyone else in Sweden with the same problem?
TYTN Black 2.5
Radio 1.41.00.10
Buzzing
I have a Hermes through Vodafone and recently flashed with AKU 3.31 so can tell when I am connected via HSDPA. I am using FlexMail 2007 and I have been having the same problem that you describe. Some of my incoming calls go straight to voicemail, paricularly since with the IMAP IDLE function on FlexMail is frequently connecting. When I try to make calls I end up having to close FlexMail before making a call. By coincidence, I just contacted T-Mobile yesterday, and I found two other reasons for switching: 1) Web 'n Walk -- up to 1GB per month under their fair usage policy, the closest I have found to unlimited data in the UK and at a very reasonable price, and 2) Business One Plan which allows you to use your inclusive minutes for calls to North America and Europe for no extra charge. The only downside that I can see with switching to T-Mobile is that sms bundles are separate, while with Vodafone they are included in the data packages, and I will lose access to Vodafone Text Centre, which allows me to send sms messages from my computer within Outlook over the internet (and interestingly counts these as sms messages sent from the UK no matter what country I am in, so all messages I send using this are included in my bundle).
I can now confirm now at least all Vodafone UK customer will have this problem when they connect to HSDPA, i have cancell my contract with them, i pay my remaining contract fee which is £320 ! I wrote a 3 page long letter to them explaining this to them, the reason of my cancellation is because their network issue, not mine. I have phone them a lot of times as well, the answer i got is "don't use 3G then, just use GPRS!".
Anyway, i am now on T-mobile network, and the above problem is no longer here, i connect to HSDPA, if calls comes in, the network will drop itself to 3G for me to answer the phone, then up again to HSDPA once the call is finish, sweet!
wu5262 said:
I can now confirm now at least all Vodafone UK customer will have this problem when they connect to HSDPA, i have cancell my contract with them, i pay my remaining contract fee which is £320 ! I wrote a 3 page long letter to them explaining this to them, the reason of my cancellation is because their network issue, not mine. I have phone them a lot of times as well, the answer i got is "don't use 3G then, just use GPRS!".
Anyway, i am now on T-mobile network, and the above problem is no longer here, i connect to HSDPA, if calls comes in, the network will drop itself to 3G for me to answer the phone, then up again to HSDPA once the call is finish, sweet!
Click to expand...
Click to collapse
Glad you got it sorted Wu & welcome to the T-Mob club.
How do i use HSDPA?
I get GPRS/3G as options in the connections box...
I only ever see 3G in the icon at the top.
Im on t-Mobile UK
I live in southern africa where its still going to be some time before the G1 is launched.
It would be possible for me to order the US G1 from ebay but I am concerned about the network band because firstly I want to know that the phone will at least work on the regular 2G network (1800 in my country) for the usual phone calls and then of course I want to be able use 3G for Internet access. I don't know the 3G frequency in my country but the service has been available for over a year already.
Is it a software restriction which can be resolved by updating the firmware at a later stage or is there actually different hardware for the model being released in the US and those being released in other countries like the UK?
Thanks!
Take a look here to find the UMTS frequency that your carrier uses (of course, call to double check):
http://en.wikipedia.org/wiki/List_of_Deployed_UMTS_networks
It hasn't exactly been confirmed yet, but the G1 is supposed to support both 1700+2100 (UMTS IV) and 2100 (UMTS I) networks. Since African carriers are all using 2100, you should have no problems getting a 3G signal without having to worry about hardware/software compatability. You should also confirm that your carrier will provide the approrpiate connection settings in case you need to set it up manually.
The G1 also comes with quad-band GSM/EDGE, so you will certainly be able to receive 2G signals.
However, keep in mind that the first batch of G1s will be locked to T-mobile. You will need to make sure that you get a carrier-unlocked device in order to use your carrier's SIM.
fhsieh said:
Take a look here to find the UMTS frequency that your carrier uses (of course, call to double check):
http://en.wikipedia.org/wiki/List_of_Deployed_UMTS_networks
It hasn't exactly been confirmed yet, but the G1 is supposed to support both 1700+2100 (UMTS IV) and 2100 (UMTS I) networks. Since African carriers are all using 2100, you should have no problems getting a 3G signal without having to worry about hardware/software compatability. You should also confirm that your carrier will provide the approrpiate connection settings in case you need to set it up manually.
The G1 also comes with quad-band GSM/EDGE, so you will certainly be able to receive 2G signals.
However, keep in mind that the first batch of G1s will be locked to T-mobile. You will need to make sure that you get a carrier-unlocked device in order to use your carrier's SIM.
Click to expand...
Click to collapse
Thanks, that makes me feel more comfortable with ordering a G1 from the US.
I was just concerned because I read somewhere that the US version does not work in AUS so there obviously are problems in some countries with the bands. The UK version will apparently work in Aus.
Again, I want to emphasize that you need to make sure you have an unlocked version. When you first turn on the phone, you are required to log into gmail (or create a new account) over a 2G/3G network. If you are unable to login (because the phone has not been unlocked to work on your carrier's 2G/3G), you will not be able to use the G1 for anything other than emergency calls. You won't even be able to enable WiFi to handle the login.
http://androidcentral.com/g1-wont-work-without-a-data-plan-period/
If at all possible, I would advise waiting at least until some other folks have tried bringing the G1 to other networks so that you know what exactly you will have to do to get one working on your carrier.
Thanks again, I will definitely ensure that I do not purchase a network locked G1.
I am wondering if 3g networks require the phone to have 2 of the same bands or just one? for example, If I had a phone with 3g frequency of 1900/2100 would it still work with at&t or rogers (850/1900)?
3G would not work. Your phone needs to support whatever frequency is in the area. Lets say you are on AT&T, and AT&T uses 850 & 1900, but in your region they only use 850, then the phone must support 850 in order to properly use 3G signals.
For the most part there is no way to unlock frequencies or change frequencies on phones either.
Jason
So basically your saying that depending your location, it may or may not work?
Emulating a BTS for VoIP
@myrandex,
I wonder if it would be possible to have a USB 3G modem acting as a BTS.
I have 3cx on my ntb and, since I am roaming 95% of my time around Europe, I would like to set-up a USB modem to connect with my HTC Pro (which has the WM6VOIPFull installed) and hook-up to my 3cx via SIP and route my calls via Internet.
I can sort of do it now with WiFI, but battery drain and range really suck!
Right now I'm considering swapping pre-paid 3G SIM cards whenever I go to a new project; usually I stay 3-6 months - not enough to justify signing-up for a post paid (10.00 euros/month!!!!) and sure enough to break my bank account (*400 euros last month alone!*).
So PLEASE, I'm BLEEDING, if you know of any software that would make a USB or another htc (I have an old one around) to act as a BTS and stablish a data connection (with routing) to my hand set, that would ROCK!!!
I've been searching for 3G gateways and routers, but what they do is connect SIP-to-GSM/3G and vice-versa using the 3G network, not much help for me
So, the word is out! Let's see how many telco gurus are on xda (shhhh).
Thanks,
HZ
hzmonteiro said:
@myrandex,
I wonder if it would be possible to have a USB 3G modem acting as a BTS.
I have 3cx on my ntb and, since I am roaming 95% of my time around Europe, I would like to set-up a USB modem to connect with my HTC Pro (which has the WM6VOIPFull installed) and hook-up to my 3cx via SIP and route my calls via Internet.
I can sort of do it now with WiFI, but battery drain and range really suck!
Right now I'm considering swapping pre-paid 3G SIM cards whenever I go to a new project; usually I stay 3-6 months - not enough to justify signing-up for a post paid (10.00 euros/month!!!!) and sure enough to break my bank account (*400 euros last month alone!*).
So PLEASE, I'm BLEEDING, if you know of any software that would make a USB or another htc (I have an old one around) to act as a BTS and stablish a data connection (with routing) to my hand set, that would ROCK!!!
I've been searching for 3G gateways and routers, but what they do is connect SIP-to-GSM/3G and vice-versa using the 3G network, not much help for me
So, the word is out! Let's see how many telco gurus are on xda (shhhh).
Thanks,
HZ
Click to expand...
Click to collapse
I don't think it's possible to do what you're mentioning right now, but perhaps someone could create a hack if they really worked at it. To be honest that may not be worth the effort, the labor spent on creating such a system would probably outweigh the costs of getting the device with the correct bands
And, to answer the OP's questions, there are definitely plenty of users with devices that only support one of the 3G bands their carrier uses.
For example, a lot of people import the Telstra HD2 for use on AT&T's 850 band, even though it doesn't have 1900 support.
There are some cities where AT&T doesn't have 850 support, but a lot of recent 3G expansion/upgrades have resulted in additional 850 band usage, especially in markets like NYC.
You should check to see if AT&T uses 1900 in your general area, and any other place you intend on using the phone. Worst comes to worst, you'll still have EDGE...Some areas support both 850/1900 and devices toggle between them depending on which is less congested, etc. 850 tends to have better in-building reception, so if your device only supports 1900, and the network is spaced out for 850, you might not have as good 3G coverage in some areas, even if 1900 is technically supported.
All that in mind, if you're going to go with a "half-band" 3G solution, 850-only is probably better, as it correlates with AT&T's most recent 3G expansion/upgrades, and yields better indoor coverage when available.
Just a combination of my two cents and observations above. As always, YMMV.
@gsvnet
Nice reply to mkeras2, complements the one from myrandex very well.
Now to the BTS subject,
Actually, the idea of using a usb dongle doesn't seem so bad, these things have two way radio as any cell phone, it's just a matter of setting one as the end-point (broadcasting/polling) and the other (hand set) as client. I wouldn't mind having a tweak in the registry to set the radio to "allways connected" to a fixed "FakeNetID" and bypass PAP/CHAP authentication with the BCS (after all there would be no access to the GSM network, just to my PC/Internet/SIP Server) and I would only need data traffic, no messing around with CoDecs and the "hooking" of voice channels. A simple app could easily set/reset the registry, but I wonder if the radios would complete handshake and establish a connection.
I'm not sure about range with these radios without any high gain antennas and amplifiers, but I just need a few hundred meeters of access, pretty much as a good WiFi Router. And it would probably be perfectly legal as well (the devices are anyway).
After that it would be just routing.
BTW, I would love to get my hands on one of those new microcells. That's exactly what these things do, but with multiplexing and all the heavy security to authenticate and register to the GSM network.
They are being tested in the UK (I believe the first in Europe so far).
I live in Holland, but am currently in Luxembourg and have been recently working for 3+ months in Switzerland, LUX, NL and hoping around in Germany, Belgium, UK and Spain (vacations!!! ahhhh)...
So I'm curious to know what kind of plan Telcos will make available with the microcell.
If I am able to take it with me and plug it in whatever IP access point I have around, this would solve my roaming problem.
I don't mind paying to have access, don't get me wrong, but my NL plan gives me unlimited data access (national) for e10.00/month and I just went looking for a plan that WAS available from Vodafone UK (I use Vodafone NL), which allowed 5GB of data roaming in the EU for circa 50pounds/month, but it seems they no longer offer this plan.
During the last 2 months I was charged 300 and now almost 400 euros for roaming. As I said, I have a 60.00euro plan + 10.00 for unlimited national data.
I also know that in other EU countries you can get unlimited data plans for fair money as well, the problem is that I never know for how long I will stay in any given assignment/country. By the end of the year I would have some 5 or 6 annual subscriptions (still cheaper than roaming!) but I must have proof of residence in all those countries, bank account, etc, etc, etc... I don't LIVE in these places, I just work there for rather longer periods... and BTW, I'm a micro entrepreneur, so no way to push this onto "The Boss"... Thats me!
So I believe the charges imposed by Telcos for roaming are just not fair... Outrageous, actually.
I don't even mind paying for the Telco's CapEx (buying the microcell and using MY Internet connection), but at least I would have a sense of control and partnership/sponsorship.
And my mother told me to be a doctor... Decided to go into IT... Yeah!
Any info on these microcells and any ideas and buzz on Telcos' plans are very appreciated.
Cheers,
HZ
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.
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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)
Is there a way to do WiFi calling and totally disable the cellular radio? I tried the instructions here to disable the radio:
hxxp://forum.xda-developers.com/showthread.php?p=8993781&#post8993781
and it did just disable the cellular radio (WiFi still showed up as connected), but when I tried to make a call, it said "To place a call, first turn off Airplane mode." I'm about to leave the country, and I was waiting for this update so I could use my phone without the International roaming charges. This won't work if the phone registers with their cell towers.
Turn off Airplane mode and in the Wifi Calling app under settings or such, I don't have my phone with me at this moment, there is an option to select WiFi only calling. Right now I'm over in Ireland and this seems to work well.
It seems that the cell radio has to be enabled for WiFi calling to work. So Airplane mode can't be enabled.
Can someone verify this? I am travelling overseas soon as well and would like to know if this works.
Thanks,
tehtide said:
Turn off Airplane mode and in the Wifi Calling app under settings or such, I don't have my phone with me at this moment, there is an option to select WiFi only calling. Right now I'm over in Ireland and this seems to work well.
It seems that the cell radio has to be enabled for WiFi calling to work. So Airplane mode can't be enabled.
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Do you have your sim in? Mine has an invalid sim error anyway, but I had given up on using it in europe since it seemed like the sim was a requirement.
I am not sure the wifi calling app will provide free international calling. The app requires that you register on a GSM network in order to make a wifi call. This is so it can deduct minutes. My guess is that you either must be on the TMO network or a network that has a roaming agreement with TMO. You are charged minutes for the call, but I am not sure whether you would be charged just regular minutes or roaming minutes if you use the phone on another network.
You would think this should work, all it's doing is connecting to TMO for a connection via WiFi instead of cellular towers. Why would it care where you are in the world when connecting via the net?
I think it should work, but I think the OP was looking for free calling. My guess is that you will be charged regular roaming rates, or at least regular US rates using the wifi calling app.
I'm not looking for free calling, but to be able to make wifi calls outside of the US without getting hit with roaming charges. Unless things have changed, if you turn on your phone outside the US (and you're a US customer) you get hit with a roaming charge, period. Then you have international roaming mins on top of that. With my Blackberry, I could turn the cellular radjo off, and UMA would register my SIM over wifi. I could make calls all day long and they would just count as regular mins. Is there a way to do this without switching back to my Blackberry?
cparekh said:
I think it should work, but I think the OP was looking for free calling. My guess is that you will be charged regular roaming rates, or at least regular US rates using the wifi calling app.
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Sorry,
That is what I meant. I just can't imagine you would be charged roaming since you aren't really roaming. Using your standard minutes I can understand..
You're still registering on someone elses network regardless. I'd think it'll still know you're roaming and still charge you that rate.
Sent from my T-Mobile G2 using XDA App
No, you're not registering on someone else's cellular network. People do this with Blackberry UMA all the time. What it is, is your phone connecting to the internet, and passing the packets along to a T-Mobile server. From that point on, it's not any different than any other cell phone call. So you can be anywhere, since the internet in say, Antartica is the same internet in the US. And they don't charge for roaming. Again, Blackberry users do this all the time.
When you are overseas with t-mobile, you only get charged for calls, sms and data used (providing you have int'l roaming activated on your account) If you do not call or text and data roaming is turned off, there should be no charges unless you call.
I would assume that as long as you select wifi only in the wifi calling app, you shouldn't be hit with any roaming charges.
Something else to keep in mind is most of the hotels in europe in which I have stayed charge for internet access.
Why not call T-Mobile and ask...I bet they have an actual answer as opposed to internet speculation.
I did call and ask. That's why I came here to ask you guys if you know of a way to turn the cellular radio off completely, and make UMA calls. The Tmo rep didn't know how to do that. Everyone I was able to get a hold of could only read off the scripts. No one had any experience with the G2 and UMA (not surprising). But what they were able to tell me is, if I turn my phone on, and I have a voicemail waiting for me, it'll send a voicemail notification to my phone, and I'll get charged for international roaming. If I have a text waiting for me, and I turn my phone on, I'll get hit with an international roaming charge. This all sucks because I went ahead and got my wife a G2 now instead of waiting for Christmas, because I thought we'd be able to make WiFi calls while we were traveling. I'm pretty sure they just thought, "oh, airplane mode! people shouldn't be making calls, so we'll block calls while in airplane mode!". Only problem is that the manual radio disable I read about gets detected as airplane mode. So for my situation, UMA calling is worthless! I guess we'll be sharing the blackberry next week.
Yup. I am experiencing the same thing. When I go in and type *#*#4636#*#*, I can disable the radio. Unfortunately, the wifi calling app cannot register on the TMO network and won't enable. Therefore, though I have wifi, I cannot use the calling app. I don't see a way around this, except maybe to set it to GSM only (which is what the wifi calling app does), and then you would not get charged for data roaming, only phone roaming.
Why not just use the skype app?
You can then call out on Wifi and it costs basically nothing, their intl' rates are so cheap. It will cost literally nothing if your wife also has the skype app on her phone.
Also, don't forget tikl or any of the dozens of mobile to mobile walky talkie apps which work over wifi. Get creative!
app isn't UMA
because it has to register with the wireless network, the app isn't UMA like on a BlackBerry. I think it's a great concept, but it would be nice for everyone if it worked the way you are hoping.
just another way the company is "stickin it to ya"
it doesn't have to register on the cellular network. that would completely defeat the purpose. I can go where there's no cellular coverage at all, and make calls. i've verified that this is possible. we have a complete dead zone at work. i've turned the phone off, turned it on in that area, enabled wifi calling, and made a call. if I turn airplane mode on for a second, it refuses to allow wifi calling. also, someone who lives in a rural area and doesn't have any coverage at all would never be able to use wifi calling. And that's the whole point of it! i don't know where people get this idea that it has to register on the cellular network? does anyone actually have proof otherwise? or is it just speculation?
I do agree that this is just a way for tmo to stick it to us!!
anyways, skype's out because my wife can't forward her number to a skype number. oh and the company who developed it is calling it UMA.
Actually you can forward any number to a skype number if you have a skype-in number. I paid 30 dollars per year for a skype in number and I use skype for 99 percent of my calling on my G2 in combination with google voice. I have the hacked version of skype that works over 3G and it works great over wifi as well.
Sent from my T-Mobile G2 using XDA App (and voice to text)
WiFi calling on UMA is not the same as SIP calling. Please do not expect WiFi calling to work in airplane mode as your headset... as has been said before must register with a tower.. wifi calling is like a signal enhancer. If you want sim free calling you may wanna investigate SIP. the best setup so far is Google voice + gizmo + a sip client.... I don't use sipdroid since I don't know why it needs my GPS location. But there you have it.