Comments on: True 4G Future Gets Closer, Qualcomm Successfully Completes VoIP LTE To WCDMA Tests

By: Josh Groff

Josh Groff — Mon, 06 Feb 2012 13:53:00 +0000

Two of the GS2′s have snapdragon S3′s? I know t-mobile’s does

By: Josh Groff

Josh Groff — Mon, 06 Feb 2012 13:41:00 +0000

T-mobile is working on implementing VoIP, they already have WiFi calling (which is why I locked in for another 2 years, wireless N router = amazing VoIP)

By: Tim242

Tim242 — Sat, 04 Feb 2012 21:38:00 +0000

The LG Revolution is the only phone thus far to support VoLTE. Verizon uses it in testing.

By: kweber

kweber — Sat, 04 Feb 2012 18:18:00 +0000

he means with the outages

By: Gasai Yuno

Gasai Yuno — Sat, 04 Feb 2012 15:34:00 +0000

(Although I’m not sure how exactly they did it on Lattelecom; there’s a possibility VoIP was in use instead of pure channel division method.)

By: Gasai Yuno

Gasai Yuno — Sat, 04 Feb 2012 15:31:00 +0000

The problem here is that, how do I put it, voice over LTE is essentially data over LTE.

In GSM 3G networks, there’s no “Voice over UMTS”, there’s just UMTS data, divided into subchannels where one is used for voice (transmitted as data), and another, with less priority, for data.

You don’t need the transceiver itself to handle subchannels, too.

By: Tony Allen

Tony Allen — Sat, 04 Feb 2012 15:28:00 +0000

I can’t find any evidence of them actually using real VoLTE and if they had, it hasn’t been for over a year now, they were only testing LTE on their network at the 850Mhz spectrum in summer of 2011. So you’re wrong.

You’re entirely missing the point of this article though. They can’t have been doing what this new chipset is going to do. Since without the technology the network isn’t capable.

By: Gasai Yuno

Gasai Yuno — Sat, 04 Feb 2012 15:23:00 +0000

Lattelecom for example.

By: Tony Allen

Tony Allen — Sat, 04 Feb 2012 15:22:00 +0000

Really? On what network have you had such a thing?

By: Anonymous

Anonymous — Sat, 04 Feb 2012 00:31:00 +0000

It’s a bit annoying when that happens… I’m pretty sure it’s WCDMA because that makes more sense. Since LTE is an evolution of 3GPP tech as is WCDMA, it would be logical. It should be easier to get it working with WCDMA than CDMA as well.

By: Butters619

Butters619 — Sat, 04 Feb 2012 00:16:00 +0000

I’m pretty sure it’s WCDMA (aka GSM) but this information is posted 1,000 times on the internet across all sorts of blogs and news sites and almost every one uses both terms :/

Edit: Yeah it looks like it’s WCDMA. And since they have plans to show off the demo at Mobile World Congress (GSM heaven), it would seem to back that up.

By: Anonymous

Anonymous — Fri, 03 Feb 2012 23:44:00 +0000

Need a network that supports this before any phones come out. No networks in the US use VoIP which is necessary for a pure IP based network to handle voice.

By: Anonymous

Anonymous — Fri, 03 Feb 2012 23:41:00 +0000

Title says WCDMA, article says CDMA. There’s a big difference, so which is it?

By: Anonymous

Anonymous — Fri, 03 Feb 2012 23:36:00 +0000

probably something else. It’ll take a while for the network to become large enough and stable enough to use this over CDMA. The GSIII and the iPhone will be out way before this becomes a reality. Also, only Qualcomm’s S4 chipset has been shown to do this so far and Samsung/Apple like to use their own chipsets for their phones.

By: Gasai Yuno

Gasai Yuno — Fri, 03 Feb 2012 23:20:00 +0000

Meanwhile in Europe, voice over LTE is in use for a year or so (with automatic 3G and 2G fallback support).