Why incoming call is blocked while GPRS is in transmission?

[brahms2000]

hi all,

i got a very annoying "feature" in the O2 Cosmo(T-Mobile Dash). The incoming call will be blocked(heard busy tone) if the GPRS is in transmission. I was complained by many friends.

To my understanding, there's a setting in some phones to enable both GSM/GPRS concurrent connections. Is there such setting in Windows Mobile?

My ROM is 1.13.207.2, RADIO is 4.1.13.28_02.63.90

i tried to refersh its ROM, but don't know how to CID unlock. the "RUU_Excalibur_SPL-1.11_UpgradeOnly.exe" on the server has no luck for me, still "Invalid model ID".

can anythone show light on me?

thank you

[willyf]

I think microsoft released a patch for that: i'll try find it on google for you. can you explain what configuration you used?

[bigyellowdog]

I think the 'patch' you need is called 3G. ;)

[levenum]

I have the exact same problem and I opened a thread on it as well.
Read here. (http://forum.xda-developers.com/showthread.php?t=269753)
The conclusion we reached was that this is a network, not phone dependent problem.

[Rudegar]

yeah never happent to me ever

[brahms2000]

thanks for all the replies.

My previous phone is O2 XDA Mini S(Wizard). I used that one to receive push mail provided by GoodLink, which requires GPRS always on. I didn't have such issue with that, at least no complain from my friends. :)

That's why i am wondering something wrong with the RADIO configuration. I didn't make any specific change to my new O2 XDA Cosmo(Excalibur).

best regards

[brahms2000]

And back to my memory.

I used to have the classical Ericsson T39. There was a setting to enable GSM incoming call during GPRS transmission(cannot remember the exact name). By enable that, i can still receive incoming call, and the GPRS connection will auto resume after the call.

Is there similar setting for Windows Mobile?

[markgamber]

There is not as far as I've ever known. I've used smartphones that determined which was blocked and which was not based on which application was in use at the time. That is, if you were actively using IE or some other network app, phone calls would go straight to voice mail. If a non-network app was front and center at the time, the network would be disconnected and the phone would ring. That (and the SE settings mentioned above which I saw on my SE phones too) showed that it was a phone setting made by the carrier. I'd hope there's a little more intelligence behind it than just "voice trumps network" but if there is, I couldn't tell you what determines which gets through and when.

[CJBS]

I've found that it's based on the amount of data being transmitted at the time of the (attempted) call. For example, high-bandwith usage such as media streaming will lead to the incoming phone call being blocked/diverted most of the time, whereas sporadic usage (eg. PING, or loading a very simple web page) has allowed a call to come in, temporarily disabling GPRS. GPRS can never be used during a phone call.