I have the 7250 and notice when Im on the internet, if someone calls it goes directly to my voicemail. Anyone experience this?

I would like the call to go through and not to my voicemail.

Thats a limitation of GPRS or at least Blackberrys. (As my SE T610 would *sometimes* retrieve calls when being used as a laptop modem; though from what I heard its my understanding that the phone was already disconnected from GPRS; I just didn't notice and would get the call.) You're stuck when it comes to that.

The 7250 is a CDMA device, but suffers the same problem.

When i had my blackberry 7250 i didnt encounter this problem, my browser would just halt and show the incoming call screen. However with my new treo it now goes straight to voicemail... Both were with Sprint Service.

Is this true whenever an active data coinnection is open? ie: would a program like verichat create the same issue? or is it only when the browser specificaly is in use?

Running verichat doesn't seem to create the same issue. You can try it, Just run verichat and call yourself. (If for some reason you only have a Blackberry and no other phone, then search for a phone relay online and use that.)

i have the 7105t and although i use it as a modem i am always getting calls through it and i can even pick them up and tlak and i dont get disconnected.......hmmmmm wondering about that now i have noticed that if you are using the browser of the phone your calls will go straight to your voicemail

if you are connecting to the internet via a blackberry device using GPRS, you are using all the GSM channels available for the device.

GSM channels are used for voice. So technically the voice channels are being used to connect to Data. There is why you get the voicemail when the device is browsing the net.

If however you have a 3G device, voice and GPRS calls will be unaffected as 3G uses it own channel

is the 8700 a 3G device?

Nope. It does support EDGE which is faster than GPRS; but thats not 3G.

Doesn't EDGE support connection speeds greater than 128k? If they network and device support that speed, technically, it is 3G.

EDGE Falls under 2.5G, not 3rd Generation when talked to by most people.
3G is a network type, EDGE gives some benefits of 3G but its running on a 2G network; thus it's generaly 2.5G. You can call it 3G for its data transfer rate but you're not really running on a 3rd generation network.

See: http://en.wikipedia.org/wiki/3g for more info on 3G & http://en.wikipedia.org/wiki/2.5G for info on 2.5G; Yes I know wikipedia isn't always the best source for information, but it was the quickest thing at the moment.

Edit: Added 2.5G Link.

No existing maintstream cellular wireless technology enables simultaneous voice and data. Nor will any technology allow a call through when the device is actively transferring data. You may be in the browser and receive a call--which happens only when data is idled. The same applies for tethering for data access.

While digital cell phones digitize your voice--converting it to data--you're still using circuit switched technology to handle calls.

EVDO Rev A. will change things. This version (as proposed) eliminates circuit switched voice--everything is packet switched (Aka. VOIP). Allowing for seamless voice/data sessions.