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Cellular Phone Forum / Country Specific / Australian Group / February 2006

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Skype on 3 Mobile - low-cost/free VoIP calls

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Giles - 21 Feb 2006 03:13 GMT
Hutchison moves on mobile Skype
double click | David Frith
FEBRUARY 21, 2006
http://australianit.news.com.au/articles/0,7204,18184194%5E15309%5E%5Enbv%5E,00.html

WE should be able to soon make low-cost, or even free, voice over
internet protocol calls from mobile phones.

IW Distribution has been working on a system that will let users of
many Nokia and Sony Ericsson handsets make calls over the Skype VoIP
network.

Other big mobile telecommunications players are moving to make mobile
VoIP even more accessible.

The Hutchison group, which pioneered third-generation mobile services
here, signed a deal with Skype last week that paves the way for cheaper
VoIP calls on 3.

Trials are reportedly under way on Hutch's Swedish service and a launch
here later this year is tipped.

In the Swedish trial, Hutchison is offering users a Skype bundle with a
3G flat-rate subscription and a 3G data card. Users can make unlimited
Skype calls.

Why would Hutchison want users to make free or cheap calls on Skype,
when it makes good money, typically 25c flagfall and then 35c for every
30 seconds, from having customers place voice calls on 3?

But Hutch executives see the millions of Skype users in the world as a
great source of new subscribers who will ante up for very profitable 3
multimedia services.

Hutchison is now talking to phone manufacturers about building Skype
software directly into handsets.

In a separate move, Nokia and Motorola have unveiled mobile handsets
that switch between regular mobile connections and WiFi wireless
networks.

Users can make cut-price calls from home, the office or a public
hotspot and if they move out of range, the handset switches seamlessly
to the conventional cellular network and the full-priced mobile call
charge.

This system uses technology called Unlicenced Mobile Access and so far
no Australian carrier has announced plans to adopt it, but it's a fair
bet some will, if only to fend off the new competition from
Hutchison-Skype.

Mobile VoIP in some form is likely to be a feature of Telstra's planned
high-speed 3GSM-850 mobile service, announced by chief executive Sol
Trujillo in November and scheduled to begin later this year or early
next.

Telstra is spending $1 billion on this nationwide network, which will
replace its present code division multiple access service, widely used
in rural areas.

It will use technology known as High-Speed Downlink Packet Access
(3.5G).

HSDPA has a top download rate of about 700Kbps, putting it in broadband
territory, but much faster speeds are promised. Telstra has mentioned
eventual speeds of up to 14Mbps, which is fast enough not only for VoIP
calls and internet surfing, but movie downloads.

Telstra will be offering wireless modems and data cards for laptops as
well as mobile phone connections.
Mike - 22 Feb 2006 00:55 GMT
> Hutchison moves on mobile Skype
> double click | David Frith
[quoted text clipped - 3 lines]
> WE should be able to soon make low-cost, or even free, voice over
> internet protocol calls from mobile phones.

Free!!?? Like the "free" handsets? :-)

I've noticed some handsets advertising using the 'VoIP' buzzword.
Can they already do VoIP over GPRS?  SIP?

With $1/MB on 3, and say 8kbps (up+down), thats 6c/minute.
Data rate is 30c/MB in bigger volumes.

If the 3G phone doesnt do VoIP, it would be nice to have a SIP phone
 that connects by bluetooth to your 3G handset.
Skype have announced a bluetooth handset, but its not clear if it
really does the skype protocol, or needs a PC with Skype gateway.
Nick Adams - 22 Feb 2006 01:02 GMT
>> Hutchison moves on mobile Skype
>> double click | David Frith
[quoted text clipped - 16 lines]
> Skype have announced a bluetooth handset, but its not clear if it
> really does the skype protocol, or needs a PC with Skype gateway.

GPRS has way too much latency to be useful for VoIP.
A User - 22 Feb 2006 10:07 GMT
>>> Hutchison moves on mobile Skype
>>> double click | David Frith
[quoted text clipped - 18 lines]
>
>GPRS has way too much latency to be useful for VoIP.

Yes, but we are talking 3g here.
Nick Adams - 22 Feb 2006 10:32 GMT
>> GPRS has way too much latency to be useful for VoIP.
>
> Yes, but we are talking 3g here.

Really?

>>> I've noticed some handsets advertising using the 'VoIP' buzzword.
>>> Can they already do VoIP over GPRS?  SIP?
Mike - 22 Feb 2006 14:27 GMT
>> Yes, but we are talking 3g here.
>
> Really?
>
>  >>> I've noticed some handsets advertising using the 'VoIP' buzzword.
>  >>> Can they already do VoIP over GPRS?  SIP?

Why are you so keen to start an argument?
I am interested in, and asked about, VoIP over 3G.
However I've noticed VoIp and "push to talk" advertised for GSM phones.
It seems you are quite correct that 2G/GPRS doesn't really do VoIP
properly. See:

http://www.zdnet.com.au/reviews/coolgear/mobiles/0,39023387,20281802,00.htm

"Because of the slight lag incurred by sending voice as data, round-trip
conversations will be stunted. It operates as a half-duplex transmission
(voice can be transmitted in both directions, but not at the same time)
using voice over IP (VoIP)..."

So yes, VoIP over 2G (aka 2.5G) does exist, but yes, you really want 3G.
Are we all happy :-)
 
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