What is ADSL 2+?

https://secure.wikimedia.org/wikipedia/en/wiki/ITU_G.992.5
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 up to 1.4 Mbit/s upstream depending on the distance from the DSLAM to the customer's premises.

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 (which was 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 download and twice the original upload speed. Not all DSLAM vendors have implemented this functionality. ADSL2+ port bonding is also known as G.998.x or G.Bond.
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Telkom is in the process of upgrading all their DSLAMs to support ADSL2+.
 
Telkom is in the process of upgrading all their DSLAMs to support ADSL2+.

yeah maybe in few years we will all have 10mbs :/
 
ADSL (G.Dmt modulation) is limited to 8Mbps, compared to the 24Mbps of ADSL2+.

G.Dmt modulation often provides better signal quality (SNR margin to be more precise) than ADSL2+ modulation.
 
ADSL2+ is some kind of urban legend here in South Africa about being able to get higher adsl speeds. But something that most of us will most likely never see in our lifetime if we have to wait for Telkom :(
 
Thanks for the answers guys. So when I buy my ADSL router, better be sure it supports ADSL 2+ so that when I pass the device down to my Kids they might use it to its full potential.
 
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