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Can't the iPhone 4 handle a voice call AND a data connection at the same time?
- Thread starter Dino F
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I heard theres a big island called Australia in the ocean too so I know for A fact there is more places than America.
Google is our friend
True for a Verizon iPhone. Some other Verizon phones such as the Thunderbolt support SVDO (Simultaneous Voice and EVDO 3G).
Yep, that makes sense, as a GSM phone cannot do simultaneous voice and data without access to a WCDMA/UMTS-3G network.
The VZW iPhone supports EV-DO Rev B which allows for simultaneous voice and data. All Verizon would have to do is perform software updates on their towers to upgrade their network to Rev B, but I'm willing to bet they only care about rolling out LTE at this point.
Its a bit more than a software upgrade but yeah you got the basic point. Rev B IMO would have been a great bridge to LTE, especially if they had started deploying it asap like Q1 2009....In terms of raw potential speed of carriers network tech's and "leaps" ill call it (If I'm incorrect in any part I'm sure Kdarling will be happy to rip my post apart
but for the most part Ive got it):AT&T
GSM>GPRS 54kbs~>EDGE 277kbs>UMTS 384kbs>*All those HSPA upgrades*>HSPA+ 14.4-21.1Mbs...
Verizon
IS-95 (CDMA2000)>1xRTT 144kbs>EvDO Rev 0. 2.4Mbs>EvDO Rev A. 3.1Mbs>LTE really fast
Then in canada Belus went right from EvDO to just converting completely to a HSPA+ network...expensive? Yes but fast as hell and pretty damn future proof regardless of LTE. Can't say I wouldn't kill to have them as a provider....
As kdarling has mentioned, it appears that Verizon already supports voice and data over 3G. The phone manufacturer has to support it (using SVDO).
Wasn't there a way they did it by using two radio's or with LTE or something? Either way I'm hoping Verizon will do voice over... EvDO that would most likely allow data and voice at the same time. But I think Verizon will be relying on their 1xRTT portion of their network as they have stated they will support it for some time and recently allot of the "dumb phones" I've seen are 1xRTT only...interesting.
That's correct. Two radios can be in use at the same time.
The Thunderbolt supports both voice+EVDO-3G (SVDO), and voice+LTE-4G (SVLTE).
However, Verizon doesn't publicize the 3G SVDO capability, as the data connection can apparently get pretty slow in that mode. Of course, even slow can be useful if you just need to look something up while in 3G.
The Thunderbolt supports both voice+EVDO-3G (SVDO), and voice+LTE-4G (SVLTE).
However, Verizon doesn't publicize the 3G SVDO capability, as the data connection can apparently get pretty slow in that mode. Of course, even slow can be useful if you just need to look something up while in 3G.
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? I was referring to the outdated verizon technology. Why use this kind of crap technology.
pyro008 said:
? I was referring to the outdated verizon technology. Why use this kind of crap technology.
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But the inferior one and again more or less an US exclusive. That was my whole point. There is no CDMA in europe and you can clearly see his operator is o2-UK. The UK is in Europe just for the people here who have never seen a world map before.
wordoflife said:
But the inferior one and again more or less an US exclusive. That was my whole point. There is no CDMA in europe and you can clearly see his operator is o2-UK. The UK is in Europe just for the people here who have never seen a world map before.
CDMA is not inferior to GSM. CDMA is more effecient than GSM and that is why GSM's successor UMTS (aka "3G GSM") uses a CDMA air interface. The technology Verizon uses is not "crap" it is rock solid its just begining to get outdated as you stated. Did you not read any of my posts in here?
Hmm so the Thunderbolt does this by using two radio's? So it seams like its more of a capability on the handset end vs the cell site's end...if not is their any chance CDMA phones that currently don't support this will with a firmware upgrade?