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call can't come in while data always on

I just switch to 3G instead of 2G. I want to experience the high speed internet suffing via my handset.
But I found the problem is that the phone call can't came in if I using the 3G data. Not even transfer to security services. Just a "Busy tone".
Check with the service provider and they are now checking with their technical dept to see if they can found the problem.
They said that the call should be able to come in because the phone call channel is different to the data channel. :roll: :?:
Anyone experience the same problem?

I experienced the same problem with my CHT9000. You may change the setting to GSM then call can come in when you using GPRS but you can't enjoy the high 3G speed on data transmittion. Anyone has better solution?

complicated issue; can be the same with GPRS/EDGE ; I made a lot of research read below;
http://forum.xda-developers.com/viewtopic.php?t=54738&highlight=

It is interesting. I don't have this kind of problem while I am using GPRS. But it happen to my new network provider (3G).

Lucky you then :lol:
At least you have GPRS/EDGE working and as a result it is absolutely a network provider issue.
I talked every detail with a guy in my Net. Op. and seems can be solved by "tricky switching something on" but they could not make me believe that this is not thier mistake. Because Class B phones MUST suspend the data flow and accept incoming calls for the technical point, only class A phones (no retail ATM) can make data flow and GSM talk at the same same.
GPRS is 2G, EDGE is 2,5G and same tecnique as 3G, only speeds are lower, so I beleive if u use 2G suspend while incoming calls your Net.Op. can solve the problem if they want :wink:

I have this strange problem with my vario II.
I am using Tmobile GPRS on both 2g and 3g network, If I am using the 2g phone works if If am using 3g phone doesn't work if I call it, the phone rings but doesn't alert me. The most annoying problem I am having is the phone switches between 2G and 3G if I am in a call the phone goes silent can't hear anything the display shows the call as connected and around 5-10 seconds later the phone drops call drops. This happens even if the data connection if not active.
What is the deal with that? anyone else have this problem.
Phone band settings are below
network type
Auto
GSM
GSM(900+1800)+UTMS(2100)

I've just discovered the same problem with my orange branded tytn, I'll be phoning them later to ask what they can do about it.

xxnoelziexx said:
I am using Tmobile GPRS on both 2g and 3g network, If I am using the 2g phone works if If am using 3g phone doesn't work if I call it, the phone rings but doesn't alert me.
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Works perfectly on T-Mobile UMTS for me. I did flash the Dopod 838Pro ROM though.

will flash the dopod rom in the morning. I am currently using the imate rom, and the tmobile rom the device shipped with had to many slow downs so it had to go. if this fixes the drop out issue I will be happy if not the phone will be in its box till a rom update. got the phone cheap so don't really mind. nice phone/pda apart from this issue in my line of work can't afford to miss or drop calls.
so is this a hardware or a software issue then?

No harware problem, it is absolutely software issue. Read my posts above and the links I gave

No problems here I'm afraid.
Voda v1605 running the Voda Blackberry Client, so either 3G or GPRS (where no 3G available) on all the time. Calls and SMS received perfectly.
Only issue I have is when using 3G, unlike home wired broadband, I cannot use multiple applications through the single 3G connection (e.g. Blackberry client on and surf too)
Steven

HSDPA and Voice call problems

I am in Hong Kong with Smartone and using Dopod 838pro. I discoverd that when I have HSDPA enabled and am on data conncection mode. Voice call cannot get thru. I have to disable HSDPA to allow voice call coming thru when I am connected on data. Is this a network issue or handset issue? It seems I can only have HSDPA for data but not data and voice at the same time?
Anyone can shed some lights? thanks

That is strange. I've been able to receive calls whilst surfing using wi-fi or HSDPA, but I must admit that in the case of HSDPA. Not sure if I was tempoarily disconnected from data in order to receive the call though. I just remember that nothing stopped me from receiving calls. I will have to test it and get back to you, unless someone else knows for sure.

Thanks mackabyoo7, the problem is when I have HSDPA enabled and on data conncection, the phone line is sort of disabled and the caller can only hear a long beep tone, not even droping to voice mail or busy tone.. It seems like a network issue with Smartone-vodafone in Hong Kong.

vaio said:
Thanks mackabyoo7, the problem is when I have HSDPA enabled and on data conncection, the phone line is sort disabled and the caller can only hear a long beep tone, not even droping to voice mail or busy tone.. It seems like a network issue with Smartone-vodafone in Hong Kong.
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I see. I just tested on T-mobile uk and whilst on Data (surfing) I can get incoming calls without interruption to data (even downloading) but once I accept a call and end that conversation, I am presented with a dialogue box giving me the option to resume my download or re-connect to the Internet. So it seems we don't have simultaneous voice & data either, but we can at least be able to receive calls.
I used another phone to call myself and the first attempt resulted in an automated response telling me there was a fault with the line I was trying to call (my VarioII) but on the second attempt all was normal. Not a major problem at the moment. hope u get yours sorted out.

vaio said:
I am in Hong Kong with Smartone and using Dopod 838pro. I discoverd that when I have HSDPA enabled and am on data conncection mode. Voice call cannot get thru. I have to disable HSDPA to allow voice call coming thru when I am connected on data. Is this a network issue or handset issue? It seems I can only have HSDPA for data but not data and voice at the same time?
Anyone can shed some lights? thanks
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Hi to all!
I have exactly the same problem in Bulgaria!!! When I use my Tytn in UMTS (HSDPA) band and establish a data transfer I can’t receive voice calls! If I want to receive a voice call when I initialized data transfer I have to switch the band to GSM! I can’t understand why it happens?! Is that’s from the device or from the network?! I know that Tytn is a class B device and when a voice call is present it should be suspend the data transfer automatically and resume after that, because the voice call has a higher priority by default, but this is not happening in UMTS mode! I understand that this is very actual discussion and complicated issue for many Tytn users around the world! But I thing there’s no answer yet.

It seems it is a network problem, the only way to have voice coming thru when you are connected on data is to disable HSDPA

11 seconds with 3G

Hello,
I have a DOPOD D810 and using with Vodafone-SP. When I have the 3G on the calls least about 11 seconds (sometimes 9 seconds) and without 3G (the old GPRS) the phone calls work perfectly.
Anyone had the same problem or know why it's happening?

sometimes, when iam connected with pc (usb) and share internet connection to it. i dont try it with gprs.
but when i have 3g connection without pc, works perfect

Is HSDPA in your region? Because i think i have read some posts where the HSDPA implementation makes that problem. Just turn off HSDPA support and see if its ok.

i dont know, but icons switching between 3g and H

i'm having the same problem too. The calls will drop in less than 10secs in 3G mode but with normal calls. Checked with the network provider and the Dopod HQ. Network provide says it could be the hardware problem and the Dopod HQ says it could be the network problem.... this is making me sick. And some Expert says this is normal to PDA's 3.5G phone.

Basically I can say that depends of the cell, I mean, sometimes 3G calls works fine and sometimes not, usually the ones who doesn't work fine are in different 3G cell (becasue I'm in different location).
So, can be both, a network problem (some software or hardware in the cell antena) and the phone (who don't 'talk' with the cell properly).
I search and a lot of spanish Vodafone users (Trinity) have the same problem.

just noticed that after softreset the 3G signal becomes perfect and calls signal will stay strong. But after i awhile without making calls out or incoming calls. Then the nightmare happens again. Checked with the Dopod hardware HQ, they says if the 3G signals drops then the GSM will drops too. So, it couldn't be the hardware unit problem.

Calling all T-Mobile UK London Users

All,
Are you experiencing problems with the 3G network?
I work in the city near Liverpool Street and for the last couple of weeks I am experiencing problems when logged on to the 3G network.
For example when I dial my mobile it goes straight to my voicemail.
Some of my work colleagues are unable to connect to the 3G data network.
Anyone else experiening this?
If I switch back to the GSM network everything works fine.
I have tried ringing T-Mobile and can not get through to them,
I am using Black 2.5 WM6 and radio 1.41
Thanks
Msuk

not experienced probs
Been OK for me. I use a virgin sim but believe it uses T-Mobile network. Work in same area.

Same problem here in Manchester - 3G has been fine and rock solid until Saturday night and all hell has now broken loose....
Works OK at first, then no calls can get through - datarates are up and down like a tarts knickers (if available at all) and occasionally cell disappears totally. Move into city centre and all is well again :-/
Ruled out a device problem by trying another device
T-Mob are aware there is a problem with 3G at the moment but customer services were unable to point to a resolve time.
In the interim tho (incase you didn't guess) you can force your device onto GSM rather than 3G if missing calls is critical for you when the network's having a play up.

Hey Guys
yeah t-mobile have serious issues with the 3g network at the moment (as of this lunch time). Its there number 1 priority issue and have every one and his brother looking into it.
In the meantime, they have told me to drop my calls down to GSM - in reality this means that you won't be able to make video calls but thats pretty much it.
Start->Settings->Phone->Band-> "Select your network Type" to GSM (from Auto.

London/ Canary Wharf - same problem
Same problem with 3G in Canary Wharf in London - both on Hermes and Trinity. Switching to GSM solves the problem.
Sometimes people can not contact me.
Outgoing calls - people hear me fine, but I can hardly hear them.
Have tried various radio 35, 38 and 41. And various ROM - WM6 and official HTC WM5... Same problem.

Incoming calls go to voicemail with active data connection

I've got a T-mobile UK touch plus.
Currently, if I am using the data connection then all incoming voice calls are being sent to voicemail. This occurs with a GSM connection, which is part of the spec and is fine, but also with the 3G connection, which should allow the incoming voice call through. I have spoken to t-mobile and they acknowledge this problem and say they are working to fix it.
Is it likely there will be a fix for this? Is there a radio ROM already available that fixes the issue?
Sorry if this has already been covered - I searched with a pretty wide variety of terms and didn't find anything conclusive.

I have the same phone, same network... and it still rings while i have the "3g connected" symbol (3g with two arrows pointing left and right) showing.
Havent tried while connected to GPRS cuz im not sure how to force it into G mode while im near a phone.

Sorry, I should have been clearer - the phone will ring with an unused 3G connection, but not when data is actually being sent/received. This is the behaviour you would expect from GSM, but the 3G spec should allow voice calls through regardless of data - my Vodafone v1605 has no problem with this. T-mobile say it is the device not the network, I just wonder how likely I am to get a fix for this? It could be a problem with activesync using the data connection quite frequently.
A good way to test it is with google maps, or something that will maintain a constant connection, then call your phone. 3G should put the call through, but it will be rejected to voicemail instead.
FYI to put into GSM mode;
Settings>Phone>Band>Set top option to GSM, leave bottom on Auto

same problem here. but i only expreienced that randomly
i know that gprs can not handle data and voice. but 3g should, right?

Yes, 3G should be able to run voice and data streams simultaneously without any problems. I'm surprised there is not more interest in this because it seems to be a pretty major problem with the device if you cannot receive calls while browsing or otherwise using the data connection.

Me too
I experienced this too. I have an direct HTC Touch dual rather than the t-mobile branded version but I'm using a t-mobile sim. I use Exchange Activesync and am missing calls all the time.

fwiw, i experience the same with a Nokia e61 on 3-AT network with exchange active.

It seems that T-mobile have fixed their network today to allow calls while using data. Bonus.