G.992.5

ITU G.992.5 is an ITU (International Telecommunication Union) standard, also referred to as ADSL2+ or ADSL2Plus.
Commercially it is notable for its maximum theoretical speed of 24 Mbit/s.

Technical information

ADSL2+ extends the capability of basic ADSL by doubling the number of downstream bits. The data rates can be as high as 24 Mbit/s downstream and 1 Mbit/s upstream depending on the distance from the DSLAM to the customer's home.

ADSL2+ is capable of doubling the frequency band of typical ADSL connections from 1.1 MHz to 2.2 MHz. This doubles the downstream data rates of the previous ADSL2 standard of up to 12 Mbit/s, but like the previous standards will degrade from its peak bitrate after a certain distance.

Also ADSL2+ allows port bonding. This is where multiple ports are physically provisioned to the end user and the total bandwidth is equal to the sum of all provisioned ports. So if 2 lines capable of 24 Mbit/s were bonded the end result would be a connection capable of 48 Mbit/s.

Deployment

Belgium

ADSL2+ so far is only available in the major cities of Belgium and some smaller ones.

Scarlet has ADSL2+ in its portfolio. The package is called Scarlet ADSL20. The download speed is capped at 20 Mbit/s and upload is as high as 1 Mbit/s.
Monthly included bandwidth: 60 GByte.

EDPNet also offers ADSL2+. The Max24 Dyn and Max24 Fix subscriptions deliver speeds up to 24 Mbit/s downstream and 1 Mbit/s upstream.
Monthly included bandwidth: 60 GByte. If 60 GByte is not enough, extra bandwidth is invoiced at 0.25 EUR/GByte.
For all its ADSL products EDPNet is a wholeseller of Scarlet's ADSL network.

Belcenter : The Max2+ subscriptions deliver speeds up to 20 Mbit/s downstream and 1 Mbit/s upstream.
Monthly included bandwidth: 60 GByte.
For all its ADSL products Belcenter is a wholeseller of Scarlet's ADSL network.

E-Leven offers an ADSL2+ subscription at 20 Mbit/s downstream and 1 Mbit upstream with 30GB data volume included. For 9,90€ extra per month, the volume limit is lifted and a Fair Use Policy is applied. E-Leven's ADSL2+ offering is available only in areas where they have their own ADSL2+ DSLAMs.

Dommel offers 3 new ADSL2+ subscriptions, with speeds up to 24 Mbit/s downstream and 3 Mbit upstream. From mid-november 2007, these products will be available in Leuven. In the course of 2008 cityconnect products will become available in and around more belgian large cities (such as Gent, Hasselt, Genk, Oostende, Liege, Charleroi, Antwerp, Mons, Brussels and Kortrijk).

Internet Service	Downstream	Upstream	Bandwidth Included	Price
CityConnect Lite	3,000 kbit	512 kbit	15 Gigabyte	12,95 EUR
CityConnect	10,000 kbit	1024 kbit	40 Gigabyte	19,95 EUR
CityConnect Pro	24,000kbit	3072 kbit	F.U.P.	28,95 EUR

All accounts will be delivered, by default, with fixed ip-addresses, no port-blocking at all and will use the adsl2+ annex a and annex m specifications.

North America

LaunchNet has deployed the service in 11 markets throughout the US with download speeds of 15.0 Mbit/s and upload speeds of 1.0 Mbit/s.

Covad has deployed services across several cities in the United States and now operates the largest ADSL2+ network in the country.

BellSouth has deployed the service in limited areas of its 9 state region.

BCE inc. - Bell Canada Service is expected to commence in Q2-2007 in selected areas of Ontario and Quebec.

TELUS in Alberta and British Columbia, Canada; have began the process of activating their networks (03/2007).

Great Works Internet has deployed the service in areas of Maine and New Hampshire.

ColbaNet has deployed the service in the Montreal area of Quebec.

The independent telephone companies and rural carriers of North America probably have the highest total number of ADSL2+ subscribers collectively as they are currently using such technology to deliver the "triple play" voice, video and data services in order to compete with the RBOCs and cable companies with their ILEC and CLEC footprint.

United Kingdom

In the UK, various companies are deploying ADSL2+.

BT Group, who own nearly all the POTS infrastructure across the country plan to launch ADSL2+ based services from early 2008 as part of its 21CN program to upgrade of its core network.

Alternative operators currently use local loop unbundling to provide ADSL2+ lines. Therefore the availability is limited by the number of exchanges unbundled by each telecom operator in a certain area.

Such operators include:

•Be Unlimited [1] is rapidly expanding their service of up to 24 Mbit/s downstream and 2.5 Mbit/s upstream across the UK, and have recently overtaken Bulldog in number of unbundled exchanges.
•Bulldog Broadband [2] has extensively rolled out this service across the UK, though they only advertise up to 16 Mbit/s, 24 Mbit/s is possible.
•Easynet now owned and sold by Sky [3] is the largest ADSL2+ provider in the country with 942 exchanges unbundled as of April 2007.
•Cerberus Networks [4] are providers of business-class ADSL2+ services in the UK. Services have up to 24Mbps downstream line rates and 2.5Mbps upstream.

India

[BSNL][5] offers ADSL2+ Broadband under brand name DataOne with speeds up to 8 Mbps Download

Ireland

Magnet Business [6] has led the way with its ADSL2+ roll out over the incumbents (eircom) copper local loop. 10Mb Download and 1 Mb uploads represent the fastest Business Broadband available in the Irish market. Major cities initially (Limerick, Dublin, Waterford, Portlaoise, Cork, and Galway) as Magnet rolls out its unbundled exchange project.

Greece

As of January 2007, most DSL providers started offering ADSL2+ from their proprietary Network. These are:
•On Telecoms ([7]) - Offers Triple Play Services - Up to 16 Mbit/s download
•Vivodi ([8]) - Offers Triple Play Services - Up to 20 Mbit/s download
•Forthnet ([9]) - Up to 24 Mbit/s download
•Hellas On Line - ([10]) - Up to 12 Mbit/s download
•ΟΤΕ & Otenet - ([11][12]) - Up to 8 Mbit/s download

Hungary

In Hungary, since mid-2006, multiple telecom companies have started offering ADSL2+ services. As of July 2007, T-Com, the biggest Hungarian ISP, is silently upgrading its customers' ADSL connections to ADSL2+, although with no speed changes.

Norway

As of 2006, all major DSL providers in Norway offer ADSL2+, notable are Telenor, Tele2, Nextgentel and Ventelo.

The Netherlands

As of October 2005 several wholesale DSL providers (bbned, Tiscali, KPN Bitstream) have ADSL2+ coverage on more than 50% of fixed phone lines in the Netherlands.

Guatemala

Telefónica Guatemala is deploying ADSL2+ over many areas of Guatemala City and near zones, with 8 Mbit/s of download over this areas.

Oceania

Telecom New Zealand is deploying its first ADSL2+ exchange in March 2007, and deploying more after consultation on locations.

Many of Australia's cities now have ADSL2+ enabled on their exchanges. ADSL2+ services are provided outside the regulated broadband requirement of the national provider Telstra, so are enabled in areas primarily where there is high interest. Current service providers of ADSL2+ in Australia are:

In 2006, Optus announced that it would sell its ADSL2+ network wholesale to other ISP providers. This is currently the most promising option for widespread coverage of ADSL2+ in Australia as the cost to service providers may be prohibitive with many ADSL2+ DSLAMs in each exchange. This move may provide a much wider coverage with cooperation from participating providers.

In 2007, OPEL Networks was awarded government funding to assist with a rollout of broadband in regional areas. Along with wireless broadband, the project will see the rollout of further ADSL2+ DSLAMs to be made available on a wholesale basis.^[1]

Lebanon

Ogero has started to deploy ADSL2+ in Lebanon (the Middle East) in the spring of 2006, months after they deployed the first ADSL lines in the downtown of Beirut. The service by mid 2007 covers the capital Beirut and the second capital Tripoli in the North. The local incumbent telecom "Ogero" does not allow the use of splitters over the regular "voice" phone lines and requires that an additional separate copper pair has to be placed for the DSL link. The cost of installation is around 55,000 L.L and the standard internet fee is 35,000 L.L at 128 kbit/s.

Egypt

TEdata is claiming the deployment of ADSL2+ lines through out the telecom Egypt telephone networks but there stil no signs of any speeds higher than 2 Mbit/s in any place in the country nor does it seem to be any package offers regarding that matter

Brazil

ADSL2+ (Brasil Telecom) : Upload 400 kbit/s and Download speed up to 8 Mbit/s

Germany

ADSL2+ (Deutsche Telekom AG) : Upload 1180 kbit/s and Download speed up to 16 Mbit/s ADSL2+ (Arcor AG) : Upload up to 800 kbit/s , Download speed up to 16128 kbit/s f ADSL2+ (Telefónica):Upload up to 1 MBit/s ,Download up to 16 MBit/s

Turkey

ADSL2+ (TurboNet Broadband Co.) : Download speed up to 24 Mbit/s and Upload 1 Mbit/s for unlimited connection [13]

Estonia

ADSL2+ together with a triple play solution is deployed on a large scale by Elion Enterprises Limited. Download speed is 12mbit/s (8bmit/s when watching DTV) and upload speeds are up to 768kbit/s. A map detailing the availability of ADSL2+ has been made available here.

Iran

Only Shatel company provide ADSL2+ in Iran.

Chile

Telefonica del sur Offers up to 20Mb/s, Video on demand, Digital Television and other products using ADSL2+ (G.992.5 Annex A).

External links

^ "Broadband Access and Choice for rural and regional Australia" (PDF). OPEL / Elders. 2007-06-18. Retrieved 2007-07-14. {{cite web}}: Check date values in: |date= (help)

[1] "Broadband Access and Choice for rural and regional Australia" (PDF). OPEL / Elders. 2007-06-18. Retrieved 2007-07-14. {{cite web}}: Check date values in: |date= (help)

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