ITU G.992.5

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DSL technologies
Technology ITU-standard
ADSL ANSI T1.413 Issue 2
ITU G.992.1 (G.DMT)
ITU G.992.2 (G.Lite)
ADSL2 ITU G.992.3/4
ITU G.992.3 Annex J
ITU G.992.3 Annex L
ADSL2+ ITU G.992.5
ITU G.992.5 Annex L
ITU G.992.5 Annex M
HDSL ITU G.991.1
HDSL2  
IDSL  
MSDSL  
PDSL  
RADSL  
SDSL  
SHDSL ITU G.991.2
UDSL  
VDSL ITU G.993.1
VDSL2 ITU G.993.2

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 download speed of 24 Mbit/s.

Contents

[edit] 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. Not all DSLAM Vendors have implemented this functionality. ADSL2+ port bonding is also known as g.998.x or g.Bond

ITU-T Spec Description
g.998.1 ATM-based multi-pair bonding: A method for bonding of multiple DSL lines to transport an ATM payload beyond the rate/reach capability of a single DSL loop. This protocol allows the bonding of 2 to 32 pairs and supports dynamic removal and restoration of pairs without human intervention.
g.998.2 Ethernet-based multi-pair bonding: Provides a method for bonding of multiple DSL lines for Ethernet transport. This recommendation builds on the IEEE 802.3ah-2004 methods and extends Ethernet transport over other xDSL technologies, including ADSL.
g.998.3 Multi-pair bonding using time-division inverse multiplexing: Details a method for bonding DSL lines using time-division inverse multiplexing (TDIM). This recommendation uses IEEE 802.3ah handshake for pair discovery, parameter negotiation, and setup. It also allows the hitless addition and removal of pairs and the fast removal of a pair upon pair failure.

ADSL2 Annexes ADSL2 has multiple modes for DSL providers to offer better services for different needs. Below is a list of available features based on ADSL2 specs from the ITU standards.

Annex Version Spec Description
A xDSL over POTS xDSL service functioning over POTS.
B xDSL over ISDN xDSL Services running over ISDN Digital Phone services.
C xDSL in ISDN xDSL System operating in the same cable as ISDN as defined in ITU-T Rec. G.961 Appendix III (Currently not implemented)
D ATU-C and ATU-R state diagrams See Annex D/G.992.3
E POTS and ISDN-BA splitters See Annex E/G.992.3. For operation according to Annexes A,B and I, the G.992.3 requirements applying over a frequency band up to 1104 kHz shall be met over a frequency band up to 2208 kHz.
F ATU-x performance requirements for region A (North America) F.1 Performance requirements for operation of ADSL over POTS (Annex A)
F.2 Performance requirements for operation of All Digital Mode ADSL (Annex I)
F.3 Performance requirements for operation of ADSL over POTS with extended upstream bandwidth (Annex L)
G ATU-x performance requirements for region B (Europe) G.1 Performance requirements for operation of ADSL over POTS (Annex A)
G.2 Performance requirements for operation of ADSL over ISDN (Annex B)
G.3 Performance requirements for operation of All Digital Mode ADSL (Annex I)
G.4 Performance requirements for operation of All Digital Mode ADSL (Annex J)
G.5 Performance requirements for operation of ADSL over POTS, with extended upstream bandwidth (Annex L)
I All Digital mode POTS Extending ADSL band to use the voice frequency range, 32 upstream tones for an additional 256 kbit/s upstream data rate over POTS lines.
J All Digital mode ISDN Extending ADSL band to use the voice frequency range, 64 upstream tones for an additional 256 kbit/s upstream data rate over ISDN Lines.
L Reach Extended Increases the range of the DSL service enabling the link to work at a distance of 7 kilometers, or 23000 ft
M Increased Upload speeds Upstream/downstream frequency split has been shifted from 138 kHz up to 276 kHz, allowing upstream bandwidth to be increased from 1 Mbit/s to 2 Mbit/s.

[edit] Broadband in rural areas now possible?

ADSL2+ has multiple functionalities and have Annexes pertaining to different aspects of line service. Since new functionalities are constantly added to the standard ADSL2+ specs, these modifications are added via an Annex addition.

One such future growth could be using the 0-25KHz range for Dry DSL service in Rural areas which will allow rural areas to gain broadband speeds. With current reports of mass exodus from landline use, this can be a huge boost for the ILECs, saving their rural infrastructure from ruin, by supporting low speed broadband (231 kbits/sec download and 115 kbits/sec upload) and offer Digital Telephone service as well.

This heavily depends on if the ILECs would consider investing into such an infrastructure to save their rural infrastructure, an Annex would be created for providing such a service and a firmware update for both the CPE and DSLAMs to support such speeds. 230kbits/sec is MUCH better than 56kbits/sec and is fast and functional for basic internet needs in rural areas. Along with g.Bond, the speeds could be increase to 460kbits/sec or more (depending if there are CPEs that support more than 2 ports). Dry DSL loops in rural areas would range in the $10-15 per pair plus the DSL services on top of this. At least the ILECs would have an alternative source to recoup their losses in rural areas.

The only issues right now are:

  • How long will it take to create this Annex
  • What would be the maximum distance this service can reach
  • How soon will firmwares be released to support this Annex

Any Hardware Vendors interested in creating this next Annex version?

[edit] Speed Comparison between ADSL and ADSL2+

Below is a list of actual tests conducted to determine the actual speeds that ADSL and ADSL2+ are performing. If you would like to contribute, please try to configure your ADSL2+ modem to only work in ADSL, ADSL2+, Annex L and Annex M (if available) and report the speeds here. To get your distance information, please contact your ISP or ILEC to get this information.

ADSL2+ should theoretically have faster speeds than G.DMT ADSL yet with the first test, we see that the ADSL service has faster speeds than ADSL2+

DSLAM Used CPE Modem Distance ADSL ADSL2+ ADSL2+ (Annex L) ADSL2+ (Annex M)
Versatek VersaXpress-2000MD Versatek VersaXpress-VER170P 3.8km 6144/966 kbit/sec 5920/896 kbit/sec Not Available Not Available

[edit] Deployment

[edit] Europe

[edit] Belgium

ADSL2+ so far is 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.

EDPNet also offers ADSL2+. The Max24 Dyn and Max24 Fix subscriptions deliver speeds up to 24 Mbit/s downstream and 1 Mbit/s upstream.

Belcenter : The Max2+ subscriptions deliver speeds up to 20 Mbit/s downstream and 1 Mbit/s upstream.

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 30 GB 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. As of January 21st, these products are available in the city center of 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).

Yabu ADSL offers 2 ADSL2+ subscriptions (speeds up to 24 Mbit/s downstream and 3 Mbit upstream). These connections will be available at the end of 2007 in Leuven. The covering area will be expanded to Kessel-Lo and Sint-Truiden in March 2008. In the course of 2008 these connections will be available in more Belgian cities.

[edit] Croatia

In Croatia, ADSL2+ is offered by all service providers, with major ones being OT Optima-telekom, T-com, Iskon and Metronet. Currently all DSLAMs are capable of supporting ADSL2+ technology. The foremost reason for introduction of ADSL2+ was IPTV service offered by Vodatel in HOTO Ville, which required major bandwidth increase. T-com offers up to 16 Mbit speed, while Iskon offers 10 Mbit. But Iskon offers better service after all. Both Iskon and T-com are owned by T-HT.

[edit] Denmark

In Denmark, as of 2006, all major DSL providers offer ADSL2+, including Tele2, TDC, Fullrate, Cybercity and Perspektiv Broadband. As of 2007, approximately 90% of the country is covered, although maximum bandwidth (24 Mbit/s) is available in and around the cities, that is not classifieds as villages og less. 50 Mbit has been introduced as of January 2008

[edit] Estonia

ADSL2+ together with a triple play solution is deployed on a large scale by Elion Enterprises Limited. Download speeds are, depending on package, up to 16 Mbit/s (8 Mbit/s when watching DTV) and upload speeds are up to 768 kbit/s. A map detailing the availability of ADSL2+ has been made available here. ADSL2+ is also offered by Elisa Eesti AS. Speeds range from 5 Mbit/s to 24 Mbit/s.

[edit] France

ADSL+2 (Free) : Upload up to 1024 kbit/s and download speed up to 24 Mbit/s. Triple-play offer (Internet, Phone, and Tv (about 300+ channels in SD and 10+ in HD)) thanks to their famous 'Freebox' modem.

[edit] Finland

ADSL2+ and triple play solutions are offered by the major DSL providers (including Elisa Oyj and TeliaSonera) in certain areas. Usually maximum download speed when using ADSL2+ is 24 Mbit/s and upload speed 1 Mbit/s.

[edit] Germany

ADSL2/VDSL2 (Deutsche Telekom AG): Upload 10 mb/s and download speed up to 50 Mbit/s
ADSL2+ (Alice DSL/HanseNet): Upload up to 1024 kbit/s and download speed up to 24 Mbit/s
ADSL2+ (Arcor AG): Upload up to 800 kbit/s and download speed up to 16 MBit/s
ADSL2+ (Deutsche Telekom AG): Upload 1,180 kbit/s and download speed up to 16 Mbit/s
ADSL2+ (QSC/Telefónica): Upload up to 1 Mbit/s and download up to 16 Mbit/s
ADSL2+ (1und1): Upload up to 800 kbit/s and download speed up to 16 MBit/s
ADSL2+ (Versatel): Upload up to 800 kbit/s and download speed up to 16 MBit/s
ADSL2+ (Congstar): Upload up to 1,180 kbit/s and download speed up to 16 MBit/s

[edit] Greece

As of January 2007, most DSL providers started offering ADSL2+ from their proprietary network. These are:

[edit] 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.

[edit] Ireland

Magnet Business [24] has led the way with its ADSL2+ roll out over the incumbents (eircom) copper local loop. 10Mb Download and 1 Mb uploads is a typical offering for their Business Broadband. Major cities initially (Limerick, Dublin, Waterford, Portlaoise, Cork, and Galway) as Magnet rolls out its unbundled exchange project.

Smart Telecom offer ADSL2+ products to residential customers who are connected to any of their growing network of unbundled exchanges. Currently the company have service in 37 Irish exchanges covering large areas of most of the major cities in Ireland. They have an entirely IP-based NGN (Next Generation Network) built around Multiple Service Access Nodes MSANs and carrier grade VoIP, multimedia and other services are provided using Thomson SA Cirpack Softswitch technology. This equipment provides the end user with both high speed broadband interent access and normal POTS service (i.e. a dial tone) all over the same entirely IP-based infrastructure. Max speeds of 15Mb Download and 1Mb upload represent the fastest copper based residential broadband available in the Irish Market.

[edit] Italy

Tiscali [25] is the only one offering 24 Mbit/s ADSL2+, although Telecom Italia, Wind Telecomunicazioni and many others are offering 20 Mbit/s as well.

[edit] 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. As of September 2007 coverage is optional for 75% of all landlines, with about 1% of all connections having the option for Annex M (newest DSLAMs).

[edit] Norway

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

[edit] Portugal

Clix was the first operator providing ADSL2+ technology in 2005 , latter followed by Portugal Telecom brands and Vodafone. These operators offer Download speed up to 24 Mbit/s with 1 Mbit/s up. Clix and Portugal Telecom also offer a triple play solution (Telephone+Internet+TV) with TV over IP.

[edit] Romania

The biggest ADSL provider, Romtelecom (group of OTE) is deploying ADSL2+ mainly in larger cities. Their current broadband offer tops at 20 Mbit/s download 1024 kbit/s upload. The new ADSL2+ infrastructure is available since Q2 2008.

[edit] Spain

Jazztel: Was the first operator to provide the ADSL2+ technology. Orange (former Wanadoo) Tele2 España (bought by Vodafone in September 2007) Telefónica Ya.com (bought by Orange on 2007)

[edit] Turkey

ADSL2+ (Türk Telekom): Download speed up to 4 Mbit/s and Upload 1 Mbit/s for unlimited connection
ADSL2+ (TurboNet Broadband Co.) : Download speed up to 24 Mbit/s and Upload 2 Mbit/s for unlimited connection [26]

[edit] 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 its core network. The first to market with an ADSL2+ product based on 21CN are Entanet[27].

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:

  • ADSL 24 [28] have launched their range of [products | http://adsl24.co.uk/broadband_24mb.php] based on the BT Group/Entanet network.
  • Be Unlimited[29] 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. O2[30] own Be Unlimited and also provide broadband using their network.
  • Bulldog Broadband[31] Provided an ADSL2+ service using the Cable and Wireless Network, however since Tiscali's takeover, no new customers can sign up for this service.
  • Easynet now owned and sold by Sky[32] is the largest ADSL2+ provider in the country with 1,154 exchanges unbundled as of October 2007. UK Online also use Easynet's backbone
  • Cerberus Networks are providers of business-class ADSL2+ services in the UK. Services have up to 24 Mbit/s downstream line rates and 2.5 Mbit/s upstream.
  • Virgin Media[33] Now supports ADSL2+
  • TalkTalk (Carphone Warehouse) uses ADSL2+ on their LLU enabled exchanges. However the service is currently capped at 8 Mbit/s downstream. As with all ISPs, the actual throughput speed obtained in practice is usually somewhat lower still.
  • Eclipse Internet[34] is currently trialling an ADSL2+ service to select customers. It is unknown at this time what the specifics of the trial involve, or how many exchanges are currently unbundled for the service, only that the full 24Mbit/s downstream will be available.
  • Orange customers have reported the un-advertised introduction of ADSL2+ on LLU lines in some areas during April 2008, although speeds are currently capped at ADSLmax levels.
  • Zen Internet Ltd Provide a ADSL2+ service on their Rochdale LLU exchange.

[edit] North America

[edit] U.S and Canada

G4 Communications is the largest CLEC in New Hampshire has deployed ADSL2+ service throughout the State of New Hampshire at speeds up to 24 Mbit/s down with 1 Mbit/s up.

CornerStone Telephone is one of the largest CLECs in New York and has deployed and operates a broadband network supporting ADSL2+ Annex L&M. CornerStone supports on-net customers in Eastern New York.

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 Sympatico Service is available in parts of Ontario and Quebec (primarily in the main cities), expanding to most of the DSL service area during 2008.

Bell Aliant - [35] Service is available in selected areas of Nova Scotia, New Brunswick, Newfoundland & Labrador and Prince Edward Island, subject to market requirements and technical feasibility.[1]

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

GWI has deployed the service in areas of Maine and New Hampshire.

ColbaNet has deployed the service in specific COs in Ontario and Quebec.

Embarq has deployed the first ADSL2+ speed of 10Mbit/s down with 1 Mbit/s up in the Las Vegas area starting on 17 September 2007, with other areas to follow as ADSL2+ capable equipment is available in nearly all Embarq service areas.

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.

[edit] Guatemala

Telgua in Guatemala has deployed services across Guatemala City and nearby zones, its deploying ADSL2+ in other cities and now operates the largest ADSL2+ network in the country. Deliver speeds capacity up to 1 Mbit/s downstream and 256 Kbit/s upstream, with commercial at 512 Kbit/s downstream and 128 kbit/s upstream.

[edit] Oceania

[edit] Australia

Most 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 (which has since been withdrawn) 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.[2] The program was cancelled in April, 2008.

In some areas where Telstra has rolled out ADSL 2 capabilities. They have created sub exchanges, such as the Kellyville exchange, which third party ISP have minimal ports to allow their customers ADSL 2 capabilities.

[edit] New Zealand

Telecom New Zealand deployed its first ADSL2+ exchange in March 2007, and started deploying more after consultation of locations. As of February 2008 none of these exchanges are running on the newer speeds. With the onset of local loop unbundling, competing Internet service providers such as ihug and Orcon have also trialled ADSL2+ DSLAMs in Telecom's exchanges.

On 13 March 2008, Orcon announced that it was offering ADSL2+ services to the general public. At this stage the service is only available to customers served from the Ponsonby, Glenfield, Ellerslie, Mt Albert or Browns Bay telephone exchanges in Auckland.

As of 24th April 2008 ADSL2+ is available to customers in certain areas of Greater Auckland, however, very few ISP's are currently offering ADSL2+ plans.

[edit] Africa

[edit] Egypt

TE Data has announced the launch of ADSL2+ service with speeds up to 24Mbit/s and they have used their wide coverage all over Egypt in order to avail this service in 99% of the land lines, building on its unique relationship with Telecom Egypt and being the largest ISP in Egypt regarding the international bandwidth available, which was clear when it was the only operating ISP during the famous marine cable cut during February 2008. while LINKdotNET had deployed ADSL2+ on a normal copper line at 5 Mbit/s, 8 Mbit/s, 12 Mbit/s & 24 Mbyte/s being the first to offer beyond the 2 Mbit/s & also providing the highest in the country. LINKdotNET claims that it has "the fastest Internet access package in the Middle East". Currently, TE Data and LINKdotNET are the only providers who provide ADSL2+ in Egypt because of their use of Alcatel Dslams.

[edit] Libya

LTT Company has begun providing this service in September 2007, it works fine, but the speed has not been increased yet, it is still 256 kbit/s download, and about 128 kbit/s upload.

[edit] South America

[edit] Brazil

ADSL2+ (GVT - [36]): Download speed up to 20 Mbit/s and Upload 1 Mbit/s

ADSL2+ (CTBC) : Download speed up to 20 Mbit/s and Upload 1 Mbit/s

ADSL2+ (Sercomtel) : Download speed up to 20 Mbit/s and Upload 500 kbit/s

[edit] Chile

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

GTD Manquehue Offers up to 20 Mbit/s, Video on demand, Digital Television and other products using ADSL2+ (G.992.5 Annex A and M).

[edit] Asia

[edit] Pakistan

(By Ehsan Elahi Mirza)

[37] Micronet provides DSL services in Pakistan. Islamabad and Rawalpindi are the major cities covered by MBL.Micronet Broadband (Pvt) Ltd. (MBL) launched country's first Digital Subscriber Line (DSL) broadband Internet services in July, 2002.

[38] LinkDotNet a project by Orascom also started its services in Pakistan in end of 2007. LINKdotNET introduces amazing DSL packages that couple quality service with greater speed at economical prices. This step was taken to promote broadband in Pakistan in order to provide affordable high speed DSL connectivity to everyone. The new packages offer data transfer speeds that range from 512Kpbs to 2Mbps.


[39] PTCL Pakistan's largest IP provider. PTCL is having the largest no. of Landline users and also 2 main optical fibers of Pakistan are owned be PTCL.


[edit] Iran

Rahsa company provides ADSL2+ in Iran. Shatel company provides ADSL2+ in Iran. Hamara company provides ADSL2+ in Iran. Datak company provides ADSL2+ in Iran.

[edit] Lebanon

Ogero has started to deploy ADSL2+ in Lebanon in June of 2007. Months after, it is still facing technical problems, and more than 3/4 of Lebanon is still not covered. The local incumbent telecom "Ogero" does not allow "fair competition" between providers because the state monopoly has the prices fixed. The cost of installation is around 55,000 L.L ($36.66) and the standard internet fee is 35,000 L.L ($23.33) at 128 kbit/s. Maximum speed obtainable with the ADSL 2+ in Lebanon is 1 Mbit/s download but that is divided between several users. Also download data is limited to around 5 GB per user on a 1 Mbit connection.[citation needed]

[edit] India

[BSNL][40] offers ADSL2+ Broadband under brand name DataOne with speeds up to 8 Mbit/s Download. MTNL offers ADSL2+ Broadband under the Triband brand name. Airtel has around 750K subscribers on a mix of ATM and ADSL2+.TTML and VSNL also provide ADSL2+ and speed is up to 2Mbits/s although telecoms and Internet service provider speed claims have regularly proved false. India has over 2.5 million DSL subscribers, 80% of which are on the ADSL2+ standard. In India, ADSL2+ will need to compete with the home grown and government supported HDVSL standard which supports 36 Mbps download speeds.

[edit] Hong Kong

Hong Kong's largest internet service provider "Netvigator" provides 18 Mbit/s downstream (1 Mbit/s upstream) of ADSL2+ broadband Internet connection.

[edit] Nepal

NEPAL TELECOM is constructing ADSL Network to provide broadband services to its Land Line customers. The network will be constructed in different phases, with 22000 ADSL 2+ Ports in the Kathmandu valley in the first phase. Initially, services like High Speed Internet and Virtual Private Network (VPN) shall be available at affordable costs to its valued customers through this network. In due time new services like IPTV and Video on Demand (VOD) services can also be made available through this network.

Nepal Telecom started ADSL service on May 1, 2008.
Nepal Telecom ADSL Link

[edit] Oman

Omantel company provides ADSL2+ in Oman. Starting on April 27, 2008 to be the first telecommunication company that provides ADSL+ in the Gulf region.

[edit] See also

[edit] References

  1. ^ BELL ALIANT INDUSTRY ADVISORY (HTML). Bell Aliant (2007-03-16). Retrieved on 2008-03-22.
  2. ^ Broadband Access and Choice for rural and regional Australia (PDF). OPEL / Elders (2007-06-18). Retrieved on 2007-07-14.

[edit] External links