Cannot receive calls when GPRS is on - JAMin, XDA Neo, S200 ROM Development

During the past several months I've tried several WM6 ROMs - mostly PDAViet's. Currently I have the following:
ROM version: 7.7.7.7 WWE
ROM Date: 9/08/07
Radio version: 1_02.20.21
Protocol Version 4.1.13.9
ExtROM version: Mystrerious 1.0
The device is Imate's Jamin (Prophet G3). Since I started to use WM6, I am often having the problem when I cannot receive the incoming calls from time to time - my friends have to leave the voice messages in my mailbox even when my phone is on and the cell coverage is great. It seems that it is related to GPRS activity - I have GPRS/EDGE internet connection always on and I have my email synchronized with an Exchange server over the air. What is even worse, I have no way of knowing if someone has called me - even if they leave a voice message I am getting no notification on the PDA. I started to call my own cell number often trying to understand the pattern and I noticed that when I cannot get through, I can disable the GPRS and after that the call gets through.
I don't remember having such problems with original WM5 ROM when I purchased my Prophet, so I assume it is related to WM6.
As I said, I tried different ROMs and different RadioROMs (now I rolled back to the original RadioROM originally provided by Imate, since I saw no improvement with newer RadioROMs).
I have T-Mobile USA mobile service with Total Internet plan if it makes any difference...
The questions:
is anyone else experiencing problems like this? any workarounds?
is phone line is supposed to work simultaneously with GPRS? Could it be caused by a difference between [GPRS simply connected and no internet activity] and [GPRS connected and sending/receiving data]?
could it be related to the settings of activesync (how often it syncs with Exchange or be continuously connected)?
Any help is greatly appreciated...

Incase there is any data transfer happening at the time of the call coming in (pls note even while polling there is some data being transfered) the call will not go thru.
I have been using WM6 roms for the past six months... from my signature you can see how many i have treid, in each of the roms.. I also use push mail, hence I am always connected thru edge....I get phone calls even when connected to GPRS.. however if there is any data transfer happening at that point in time the call goes into my voice mail.

i think it is problem of your service provider,try another radio rom?

I am having the same problem, any solutions?

It happens to my device roughly once a month, and my GPRS is always off. So IMHO it is related to WM6. It did not happened on WM5.

My gprs (edge) connection is always on and I have the same problems on the radio rom 2.41.21. Try to use the radio 2.61.21 - no problems with incoming calls...

Korand, thanks for the suggestion. I actually tried 2.61.21 a couple of months ago - it didn't fix this problem
For now, I've changed my Activesync settings so that it will sync data via GPRS every 30 mins (before it was "stay connected all the time") - hopefully it will decrease the probability of getting the incoming call at the time of data transfer.

zeroed said:
i think it is problem of your service provider,try another radio rom?
Click to expand...
Click to collapse
lol... this is no problem.. this is wht is supposd to happen on GSm.. because it works on a single FM frequency n not a band like CDMA or TDMA.. this is normal.. its jus like whne ur using ur dialup internet n ur phone line gets busy.. soo no solution unless u switch to TDMA

hahahha,you don't know what are you talking about,what FM frequency,this is not Benefon Delta lol

zeroed said:
hahahha,you don't know what are you talking about,what FM frequency,this is not Benefon Delta lol
Click to expand...
Click to collapse
ok.. then can u tell me the kind of modulation is used in GSM.. go wikipedia ur ass n u will see wht im talkin.. ur such a n00b
it is Gaussian minimum shift keying (GMSK).. jus a modified version of FM to use support multiple communications on a single frequency.. talk to me when u got ur engineering degree..

No calls reception - no calls outgoing
I have a TYTNII who suddently has the same problem of incoming calls directly to mailbox, for each calls, and also I can't call anymore.
Does anyone solve this problem?
With the Sim card in my Qtek 8300 WM5 I don't have the problem.
HTC support say they don't know this problem and ask to make a hard reset...
ROM 1.56.406.5 (30/8/2007)
Radio 1.27.12.32

lmdafred said:
I have a TYTNII who suddently has the same problem of incoming calls directly to mailbox, for each calls, and also I can't call anymore.
Does anyone solve this problem?
With the Sim card in my Qtek 8300 WM5 I don't have the problem.
HTC support say they don't know this problem and ask to make a hard reset...
ROM 1.56.406.5 (30/8/2007)
Radio 1.27.12.32
Click to expand...
Click to collapse
seems then its a common problem since tytnII has it may be there is something written in registry to divert call to voicemail while data traffic is going ON to avoid bad colliding accidents of voice and data packets on the same highway

to avoid dirty signals..thats all..
btw,all i know is that GPRS+receive calls = bandwidth bottleneck...see? how "cheap" the GSM is
so,the solution is to disable one of them...

Related

Problem with G4 Wizard and Phone usage

I know this is a little Bizzare, I actually do want to use the phone on my device, but for some reason, I am not getting all of my incomming calls.
I can make new calls (outgoing) no problem, but incomming calls go to Voicemail after 4 rings. The device doesnt even wake up, or illuminate to say there is a call.
Call log showed no calls, while my Wife's wizard showed she had called me 16 (yeah, she tried a LOT) times.
Is this a known issue with the Faria Rom?
IPL/SPL 2.25.0001
OS 2.18.0.0
Service is Cinguler (oops i mean AT&T)
have you upgraded to a custom rom lately? since most of the wm6 roms people highly recommend using the t-mobile uk radio rom 2.19.
mdajunkie is correct. Radio 2.19.11 should solve your problem.

Receive calls in data session

is there a way to enable the mogul to recieve calls while it's in a data session. I dont no if it is possible in both 1X and EVDO data sessions. I remember that my old Sammy A900 had an option, i think "DDTM", that allowed calls to come in even when i'm using to internet.
Calls go straight to voicemail on my mogul when im in data 1X.
hmmmmm
Well mine does work, can receive a call while in a data session, although the data session pauses because there is only the one radio so somthing has got to give. For a short time the radio looks at the pageing walsh code to check page messages for you but jumps back to data before it knows there was a pause, but if there is a message for you (ring) then the data session pauses while you are dealing with the call.
ok
I'll do some "field testing" to see if it's just a random occurrence base on reception or some other factor.
But i think i remember reading that u CAN'T recieve voice calls when in a 1X data session. I know it's possible in EVDO mode.
BTW i cant seem to get a stable EVDO connection on my mogul. thats why i'm always in 1X mode. i didnt have this problem with my A900 and i use my mogul in the same places.
WM6.1, dcd 2.3.2, 2.40oli, 3.27 radio
NYC metro area, Bronx & Queens

My System Always Freeze During The Call

Hello, I Have Just Upgrade My Rom to windows mobile 6.1 b199 from windows mobile 5 , thanks to helloworld,, but i have got a big problem, my 6828 always freeze when i make a call or receive a call,, the speaker jammed and the call ended. If that happen, i have to end the call and the phone data connection will be closed and the phone will find the network again,,it always happen if i make or receive a call longer than 30 seconds ,, help me , i can make a call anymore,, is there any solution ?? i have done a hard reset many times, but it didn't work ,,thank you
I hv the same problem with my MWG Atom Life White Limited Edition, using PDAVIET ROM WM6.1 Manilla 2D (Core 20764), already use 20924 & 20755 before...both of them always have the same problem..
If i make a call, after talking a few seconds, my phone 'hang' for a minute...
If i receive a call, my phone 'hang' for a minute...
sorry for my bad english...
any solution from Expert here Please...?
Thanks before
Somebody please help...
dody_software said:
Hello, I Have Just Upgrade My Rom to windows mobile 6.1 b199 from windows mobile 5 , thanks to helloworld,, but i have got a big problem, my 6828 always freeze when i make a call or receive a call,, the speaker jammed and the call ended. If that happen, i have to end the call and the phone data connection will be closed and the phone will find the network again,,it always happen if i make or receive a call longer than 30 seconds ,, help me , i can make a call anymore,, is there any solution ?? i have done a hard reset many times, but it didn't work ,,thank you
Click to expand...
Click to collapse
Hi dody_software,
When my radio driver 0.33, I ever encounter this problem, not only it, my data connection always bad, and need to reset to establish it. So I upgrade the radio driver to 0.34, and after that no one of that problem happened again. I suggest you to upgrade your radio driver to 0.34.
I'm having same problem. It seems the phone or maybe network problem.
Try manualy switch to 3G only on: Setting -> Phone -> Network -> Network Selection.
But in some places, I can leave it "Auto" coz I can call or receive with 3G or GSM without any problem.
Hope this could help.
Maybe somebody else could give us a better explanation.
Hi guys. I've same problem. Where can i download radio driver 0.34 and how to upgrade?

Unable to recieve calls while browsing

Is anyone having a problem where calls go straight to voicemail when data is in use?
This is a serious flaw if its by design!
I'm on o2 with the latest rooted rom. Not the custom modaco one.
Well I've just found out this is a feature of 2g rather than a phone problem. You can only take calls and browse if you have 3g signal.
Maybe on O2, but I get calls coming in no matter what I am doing on my Hero with a 2G signal.
I'm on Orange.
Same on my Nokia's too.
We only have 2G at home so I know its not a 2G / 3G thing (for me at least).
Perhaps I need some different APN settings. Could someone else on o2 UK confirm whether this is a problem or not? Also if you could post your apn details?
My apologies.
You are right and i am wrong.
If browsing on 2G the call is routed to voicemail. Even if you press Home and stop browsing, the call is routed to voicemail.
It seems that only until you have tried to make an outgoing call will it kill something and accept incoming calls again.
No wonder I keep getting missed call texts from Orange.
It would appear that if the Hero is doing anything on GPRS (Weather, Mail, RSS etc) it will not accept calls.
Thats pretty crap.
My old Nokia's were not affected like this I'm sure... maybe they were and I never noticed.
if you can open a Browser window while on a call it will tell you that there is no data connection or to use WiFi.
So is this a 'feature' of the Hero or the 2G network ?
From further investigation it seems to apply to all 2g networks. I've done a bit of googling and there are a few posts about the iphone and similar issues.
I wouldn't mind if I could get a 3g signal in most places. I really hope that radio firmware gets better. Seeing as I can get 3g on o2 in a different phone at home.
Sigh, oh well... looks like people need to learn to SMS me or actually leave a message
This also explains why my TomTom used to crap out whenever I was on the phone (Nokia) sometimes... when it worked I must have been in a 3G area.
it's both phone and network dependent.
many phones do this on 2G, as there is no 2G device in the world that i am aware of that will do voice AND data at the same time.
However, due to this limitation, many networks have set up their network to forcibly terminate a data connection when a call is waiting to be routed to that phone. I don't know if it is a command that is sent to the phone that the phone has to interpret and support, or if it is simply killed from the network end.
some network/phone combos do it, some dont. it just depends on the combination of the two i think.
similar things happen on HSDPA, yet you can see the same HTC phone get forced down from HSDPA to 3G on t-mobile to accept an incoming call, but do nothing and get a voicemail on Vodafone!
Thanks for the response rhedgehog. I think if nothing else its good that people are made aware, I had no idea!
I would be interested to know whether other networks disconnect the data on the hero in order to receive calls. It would also be interesting to know whether other android handsets do the same.
My data habits have now changed. No more exchange push email - only check every 15 mins.

Data Blocking Calls?

Hi,
Anyone aware of incoming calls not getting through, e.g. going straight to voicemail, when you're browsing the web or whatever? Or is thi to be expected?
Thanks
Phil
Phil_UK said:
Hi,
Anyone aware of incoming calls not getting through, e.g. going straight to voicemail, when you're browsing the web or whatever? Or is thi to be expected?
Thanks
Phil
Click to expand...
Click to collapse
GPRS/EDGE will drop calls. 3G and HSDPA, to my knowledge, won't.
Maybe you were not in the 3G coverage?
Phil_UK said:
Hi,
Anyone aware of incoming calls not getting through, e.g. going straight to voicemail, when you're browsing the web or whatever? Or is thi to be expected?
Thanks
Phil
Click to expand...
Click to collapse
Its a known issue where 2g networks cant cope with active data connections and a voice call and divert straight to voicemail. 3G doesnt with the capacity.
Phil_UK said:
Hi,
Anyone aware of incoming calls not getting through, e.g. going straight to voicemail, when you're browsing the web or whatever? Or is thi to be expected?
Thanks
Phil
Click to expand...
Click to collapse
the problem is that I could expect this when I am actually browsing or something but most annoying is that this does happen even when the phone is on the standby not doing anything (it must be downloading some data in the background though)
and frequency with which it drops 3g and changes to 2g and back doesn't help it in anyway... connection is very very unstable...
I guess its down to sensitivity or buggy radio rom.
i have the same problem here with eplus in germany. the normal behaviour would be, that the data flow is interrupted on incoming call and the call gets routed through. after the call ends the data connection will be set to active again. this is how my WM Phone handled calls during an active data connection. there are a lot of people with similar problems in a german forum. i thought that this is a network issue but it seems that it is a htc here related issue. If so, that would be very a major issue as the android OS and hero are build for beeing online most of the time. Anybody tried a different radio version?
chaos42 said:
i have the same problem here with eplus in germany. the normal behaviour would be, that the data flow is interrupted on incoming call and the call gets routed through. after the call ends the data connection will be set to active again. this is how my WM Phone handled calls during an active data connection. there are a lot of people with similar problems in a german forum. i thought that this is a network issue but it seems that it is a htc here related issue. If so, that would be very a major issue as the android OS and hero are build for beeing online most of the time. Anybody tried a different radio version?
Click to expand...
Click to collapse
Its not a phone issue, its a network issue. Its to do with NOM1 and NOM2 and how the network prioritises calls/data.
The network should either send a request to the phone (only some phones can handle the request though) to terminate the data or the network should cancel it on their end first and then route the call through. Most networks don't seem to do this.
Changing radio version will not rectify this issue
but obviously there is something that has to be done because it potentially will affect ALL android devices if they use so much background data.
Seriously it cannot be acceptable that phone will simply not ring just because it was checking email or updating weather...

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