Database Develop

Are HSDPA and 3G mutually exclusive ?

I have a little problem here: If i turn on HSDPA i get the H icon and REALLY GOOD internet speed, but i can't make video calls. If i turn it off, i get 3G icon, pretty good internet speed and video calls. Can't i have HSDPA turned on AND also have 3G (video calls) ?

HSDPA is used only for downloading data when you hvae it on. Thats a little starnge and sounds more like a bug to me than something wrong with the network or Kaiser

austinsnyc said:
HSDPA is used only for downloading data when you hvae it on. Thats a little starnge and sounds more like a bug to me than something wrong with the network or Kaiser
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Thanks, i kinda figured it's a bug, although it could be obvious for someone who actually knows how this stuff works that you can't have 3G and HSDPA at the same time.
Can anybody try to make a video call while H icon is displayed, please? (no need to wait for someone to answer, i get "can't make video call" immediately, just dial a bogus number)

I rarely get the H icon, only at the aiport at sertain places. But like austinsnyc said, i would have expected it would switch back automatically

As far as I'm aware, you can't make a video call on any mobile phone while there is a data transfer in progress.
Basically the answer is "yes" because a data transfer session and a video call are mutually exclusive, and the phone only uses HSDPA (and shows an "H") when there's an active session, so you can't make a video call when the "H" is showing...
Just to confuse things further, I'm pretty sure it's the network operator that decides how long their customer's phones hold on to an HSDPA connection...
T-Mobile and Vodafone in the UK are the only HSDPA-enabled networks that I've used, and they both return me to a "normal" 3G connection immediately after a data transfer, so the "H" is only displayed briefly - when the phone is actively transferring data.
After the data is downloaded, the HSDPA connection is closed immediately and my phone switches back to the "3G" icon, which allows me to make a video call. If your network allows the HSDPA session to stay active, then you'd need to end it yourself before making a call...
(BTW, this is just my understanding, please feel free to tell me I'm talking rubbish!)

Thanks guys, your info got me a lot closer to the truth (i now know you can have 3G while HSDPA is enabled in settings).
Those really not interested skip this part:
My problem is that i NEVER see the 3G icon and i can't make video calls if i enable HSDPA, even if i don't make a data connection, just enable it in settings (in my network even the name of the operator changes when i have 3G coverage so i know for sure that if i enable HSDPA i never get anything 3G, no data speed, no video call)
To make things more clear: it's like i have two phones:
1. with HSDPA or GPRS depending on location and availability, this is what i get if i enable HSDPA in settings, no video calls, operator name always "Vodafone RO"
2. with 3G or GPRS depending on location and availability, this is what i get if i disable HSDPA in settings, i can make / receive video calls, operator name "3G Vodafone RO" or "Vodafone RO" when 3G not available
I guess this is operator dependent, and it's probably something with my network, but it's really disturbing since i cant have both video calls AND really high speed data, only one at a time with soft reset. I guess i'll call thier customer service.
Sorry for the big block of text...

kaiserchief said:
As far as I'm aware, you can't make a video call on any mobile phone while there is a data transfer in progress.
Basically the answer is "yes" because a data transfer session and a video call are mutually exclusive, and the phone only uses HSDPA (and shows an "H") when there's an active session, so you can't make a video call when the "H" is showing...
Just to confuse things further, I'm pretty sure it's the network operator that decides how long their customer's phones hold on to an HSDPA connection...
T-Mobile and Vodafone in the UK are the only HSDPA-enabled networks that I've used, and they both return me to a "normal" 3G connection immediately after a data transfer, so the "H" is only displayed briefly - when the phone is actively transferring data.
After the data is downloaded, the HSDPA connection is closed immediately and my phone switches back to the "3G" icon, which allows me to make a video call. If your network allows the HSDPA session to stay active, then you'd need to end it yourself before making a call...
(BTW, this is just my understanding, please feel free to tell me I'm talking rubbish!)
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Pricipally, a 3G phone could handle a PS (packet switch) connection and a CS (channel switch) connection simultaneously. The Kaiser is, however, apparently not in this class. The unability to set up a video call while there is "H" in the display can be due to the network configuration. If the operator uses the same carrier for both "normal" PS and HS(D)PA you can probably perform a video call while you see the "H". If the network uses separate carriers for CS/PS and HSPA it is quite likely that the operator will not let you make a video call while your terminal is listenig to a HSPA-enabled carrier.

Aren't phone calls supposed to interrupt Edge?

I know I can not recieve Data while on a phone call with Edge. But shouldn't an incoming call interrupt an Edge connection?
I have a stock AT&T Tilt rom (latest WM 6.0 not 6.1) I have KaiserTweak with most settings in it set to advised. Is there anything in KaiserTweak that will cause this to happen?
I am trying to run IM+ on the phone and when it is online and connected all calls go straight to voicemail. Also when I tether and a phone call comes in it goes straight to voicemail and doesn't ring my phone. I WANT it to interrupt my Data service so I can get the phone call. (it is a phone after all)

This seems to be more of a function of the specific phone rather than the phone network. For instance, if you call a 1st gen iphone (2g/edge) while it is on an active data connection, it will disconnect the data session and the phone will ring. However, the same is not true of a Kaiser/Tilt.
My best guess is that phones w/ 3g pay less attention to edge performance and features because 3g can coexist simultaneously with a phone call.
RK

On the tilt, when you're connected to EDGE, calls will interrupt the connection IF it is idle and no data is being transferred. If data is being transmitted then the call is rejected. I've never seen anything about changing that behavior.

2.5G vs 3G
First of all excuse me for my English.
I know that EDGE is an evolution of GPRS, commonly knowed as 2nd generation. For this reason is called 2.5 generation. In GPRS and EDGE, data connection is stopped during a voice call. EDGE inherit the behaviuor of GPRS. Only 3g standards like UMTS HSDPA or HSUPA allows data connection during a voice call.
Ciao, from Italy
Francesco

It turns out that if you have the "Disconnect After" setting enabled in KaiserTweak phone calls will not stop Edge. If I turn this off then I receive calls while on an Edge connection. Seems kinda silly to me. Now I have to pretty much have data on at all times. Goodbye battery life.

Diamond drops from HSDPA -> G/3G during calls

Hi all, I'm wanting to know if anyone else seems to be experiencing an issue where during a call the signal icon will change from H to G and the quality of reception / voice also drops to what resembles a non-3G phone.
This seems to happen quite often regardless if the call is inbound or outbound. I can be sitting at my desk and have what appears to be full reception with the H icon, then 2-3 minutes into a call (still sitting at my desk) the icon will change to G and from the quality degradation it must be reducing to 2G... why is this? I could understand if I was walking around but it happens regardless and will never go back up to H during a call only once the call has ended... is this a limitation of the cell network/carrier?
I'm using Dutty's v4, radio 1.09.25.23, Olinex 1.93 hardspl. Network carrier is Optus and I'm located right in the middle of the city - Melbourne, Australia.
I'm wanting to try some of the newer Raphel radios but need to get Security Unlocked first - already PM'd Olipro... just waitin
Any comments ?

Hi,
Same problem to me... downtown of the fifth biggest city in France...
Don't worry if I may say so: the phone is the problem. it has crappy reception, probably the crappiest of all time... I have tried any possible Radio ROM available, none of them changed a signle thing...
Worst HTC phone ever made for reception... All my friends with way cheaper phones have at least four to five bars when they are at my place, I don't get that... but all my other phones do.
Eve worse: the phone totally disconnects from network when I have one or two bars of H or 3G... I receive NO phone call, no SMS and I am notified two days later (30 voice msgs, fifty SMS... all sent two days ago). I even had issues at work becaus eof all this, people complained they couldn't reach me for hours and days...
I now have to set it back to G alone (switch off H or 3G that I want to use all the time...), which is a shame for such an advanced device...

Correct me if I'm wrong, but you're not supposed to get a H during calls, maybe for video calls, I'm not sure. But for regular 3G calls, you shouldn't get a H, H should only appear when there is data transfer, like when using Internet for example.

vale|46 said:
Correct me if I'm wrong, but you're not supposed to get a H during calls, maybe for video calls, I'm not sure. But for regular 3G calls, you shouldn't get a H, H should only appear when there is data transfer, like when using Internet for example.
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I'm not really qualified to comment except from my own experience... My phone always has the H symbol, when there is no data activity then the H symble is faded/semi transparent and becomes solid as soon as I make a call or transfer data (eg. updating weather) and I never have the 3G icon - always H or G. I belive this may be related to the operator and the frequencies they use for both HSDxA and 2G modes.
Probably for about 80% of my calls I'll keep the H symbol, but when it drops to G it's really annoying as the quality turns to sh*t

My phone never seems to be able to hold a signal.
I'm on the 3 network in Australia & my phone doesn't stick to the network. If I choose options under the phone and press 'find network' a couple of times it will lock on, but then minutes later I get the 'searching for network'. Over & over again.
My phone is unlocked using the Olinex method, my radio is current & I can't even recieve incoming calls or texts...outgoing is fine (when I've got network0 & I can use browse the internet & use GPS etc...just nothing incoming...

i have a theory on this its called " crap design"! i thinks its because the internal antenna is towards the bottom of the device so when you hold it you are covering the antenna.
try holding the phone with just two fingers trying not to cover the back (below the battery ) this works for me! i only say this out of observation

Could just be the way the network is configured for HSDPA. Voice traffic can be pushed on to 3G (or release 99 as it is sometimes called) to reduce the loading on the HSPDA carrier / layer.
See it as a good thing

Most handsets I have owned usually drop from HSDPA or 3G or GPRS during a voice call, probably just a design feature to save battery life. Should latch back on after call though. I have to say though, I had the MDA compact IV and the reception is positively shocking! dropping signal is soon as I picked it up and i'm in a good signal area! On its way back to T-MO as I speak as this wasn't the only issue. Shame, great form factor as well.

Symbols on your phone are just that symbolic, they don't always mean what you think they mean.
If a UE is on your desk in idle mode and it looks like you have a great signal and a H displayed, great. It means that it is measuring the quality of the network and you have the ABILITY to hold a HS data session should you want. The reception barrs on most 3g UE's aren't a measure of the radio reception but of the amount of noise. More bars less noise, less bars noisey environment.
If you make a voice call, there is no way any decent network would use HS to carry your call as it is wasting resource somebody else could use and of course pay for. Once in a call the UE has to monitor many things and also maintain that call or data session. In simplistic terms if the conditions do not allow the call to be carried over 3G it will step down to 2G. If it was a data session it could go from HSDPA to 3G, then 3G to GPRS.
Also a network could easily by the swap of a 1 or a 0 carry your voice call over 2G without you knowing at all, freeing up that 3G network that cost billions to roll out and pay licence fees for, for data which they can charge more for.

idrisito said:
i have a theory on this its called " crap design"! i thinks its because the internal antenna is towards the bottom of the device so when you hold it you are covering the antenna.
try holding the phone with just two fingers trying not to cover the back (below the battery ) this works for me! i only say this out of observation
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Click to collapse
I think they made a mistake in the International English manual where it says the antenna is located at the bottom. Either that or it's different for different regional phones. If you download the HTC Touch Diamond_Asia_English_Manual_Manual_080521.pdf or HTC_Diamond_User_Manual_Asia_WWE.pdf from HTC's site, it shows the antenna being at the top next to the camera.

simpsoa said:
Hi all, I'm wanting to know if anyone else seems to be experiencing an issue where during a call the signal icon will change from H to G and the quality of reception / voice also drops to what resembles a non-3G phone.
This seems to happen quite often regardless if the call is inbound or outbound. I can be sitting at my desk and have what appears to be full reception with the H icon, then 2-3 minutes into a call (still sitting at my desk) the icon will change to G and from the quality degradation it must be reducing to 2G... why is this? I could understand if I was walking around but it happens regardless and will never go back up to H during a call only once the call has ended... is this a limitation of the cell network/carrier?
I'm using Dutty's v4, radio 1.09.25.23, Olinex 1.93 hardspl. Network carrier is Optus and I'm located right in the middle of the city - Melbourne, Australia.
I'm wanting to try some of the newer Raphel radios but need to get Security Unlocked first - already PM'd Olipro... just waitin
Any comments ?
Click to expand...
Click to collapse
it's not the phone its the operator fault i have the same prob even with nokia's...if the person on the other part of the line is on gsm the operator will switch u on gsm network...they do this because they don't wont to use often the 3g network

DeadGuy said:
it's not the phone its the operator fault i have the same prob even with nokia's...if the person on the other part of the line is on gsm the operator will switch u on gsm network...they do this because they don't wont to use often the 3g network
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The operators do not do this. Do they switch you to a land line when you call a land line, no. It is all down to radio quality where you are making the call and not what number or type of line you are calling. The phone networks are not that intelligent

beaker656 said:
The operators do not do this. Do they switch you to a land line when you call a land line, no. It is all down to radio quality where you are making the call and not what number or type of line you are calling. The phone networks are not that intelligent
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Actually, they are, they know what types of numbers you're calling. This is why even for long distance prices, there is a different between calling a land line and a cellphone number. Either way, the system can tell what type of line you're connected to.

Emergency Calls Only?

Running CM6-RC1, and in areas with weak signal, my phone will say "emergency calls only" and have full bar strength and no data connection. Does this mean its connecting to a different provider's cell tower for purely emergency call purposes and showing that signal strength?

I would actually like to know this as well. I noticed this earlier today hadn't happened before. That is what I think it is because Telus does have better reception in this area.

That's exactly it. When you lose signal with your regular network the phone will find the next best, but unless you have a roaming agreement all you can make are Emergency Calls.
Slightly annoying when you don't have the network name visable for most of the time. Would rather have an alt icon.

I have this same issue too. However, I need to reboot my device in order for it to work normally again, it does not appear to automatically re-connect to my network, even though it has signal, unless i restart the device.

[Q] 2g / GSM CALLS Preferred 3g+ DATA

Do anyone know of a way to change the priority of which network to use.
I want VOICE - default to most reliable [2g] and only use something else if 2g unavailable [networks in UK are notoriously bad at cell tower hand off on 3g connections resulting is dropping calls while driving on motorways]
I want DATA - default to highest speed, fall back to lower speeds as normal.
My options are 3g only, 2g only, 3g preferred - not ideal

I was asking about something like this not long ago. I had idea to automatically turn on 3g when data is on and turn 2g when data is off but at this moment there is no way to do it on stock rom. Maybe when we gonna have working CM someone can add future like this.