Re: calls not received
 

Okay I am sure that is why. If you want to fix this problem, stop using internet (IM, refreshing widgets, browsing). Or you can tell the people who call you to leave a voicemail.
If not, then you have to switch to T-Mobile to get 3G for simultaneous data and voice. With 3G, you can use the internet and call at the same time. With 2.5G, you have to turn data off to call someone. Try browsing a page, then use the phone to call someone, the phone will pop up a message saying "Cellular data unavailable" or something like that.

Re: calls not received
 

ok i get it now. Thanks a lot, i will probably have to upgrade to 3G then.

Re: calls not received
 

Yup, best way is to switch to T-Mobile. I edited my post above...

Re: calls not received
 

yes yes that is true.......i always see the message 'cellular data unavalable' but never quite bothered much about it as the call did go through anyways......

wow..you are really good......thanks a lot

Re: calls not received
 

I actually have this problem all the time on Tmobile, and I never knew that would be the cause. Why wouldn't the phone application recognize a 2.5 connection, and automatically disable data?

In areas of questionably signal strength, my device will switch between 2.5g and 3g intermittently, and sometimes I have trouble making a successful phone call.

Re: calls not received
 

Normally EDGE data connection should go on hold automatically when there is an incoming call. Mine works as expected, so I guess the problem only exists with certain operators/networks.

Re: calls not received
 

The phone WILL recognize a 2.5 connection and automatically disable ONLY for outgoing calls (you calling someone). It cannot (or will not) do it for incoming calls --- it can only do it SOMETIMES, not all the time. I am not sure if it is a problem with N900 or it's just limited by the 2.5G technology.

Re: calls not received
 

Maybe you were lucky, nothing was accessing the data when someone tried to call you. It all could be just a coincidence that your connection was just idle.

But set your connection to EDGE and keep your internet active by continuously browsing, then call yourself from a different phone. You will notice that sometimes, the call will not go through.

Re: calls not received
 

I tried forcing network mode to GSM, started a large download and called a few times from another phone. It worked every time, the data connection got suspended and automatically resumed when the call ended.

If the problem existed on every network and always when there is a active data connection, there would be a lot more people complaining...

Re: calls not received
 

I was told that the N900 will not work with AT&T's 3G, is this true?

I did a search on the web and it seems like many are saying so....

anyone here running AT&T 3G on the N900?