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gfast map June 2017

Dark blue: Firm commitments from incumbent: BT (10M), Belgacom, Australian NBN, Swisscom,  Austria, Bezeq Israel, Chunghwa Taiwan, Telus Canada, Telekom South Africa, SK Korea, (U.S.) AT&T, Century, Frontier, Windstream

Light blue: Smaller carriers" Germany, Norway, Finland, Japan

Green: Incumbent likely: Belgium, France, Germany, & Poland  Country by country details. 

BT-Speeds75% of the lines in BT's trial are delivering > 300Mbps downstream and 30-50Mbps upstream, Trevor Linney told the Paris Summit. The majority of lines are less than 150 meters. 17% of the lines delivered between 200 & 300 megabits; 10% 100-200 megabits; 3%, 100 megabits.

38% of lines were < 100 meters; 35% 100-150 meters; 14% 150-200 meters. 8% 200-250 meters; 5% > 250 meters. Current systems are not delivering the goal of 300 megabits 300 meters but Trevor Linney is confident that improvements already on the way will bring BT close to the plan.



Hundreds of homes are connected, using DSLAMs from ADTRAN, Huawei, and Nokia. TalkTalk, EE, and other ISPs are participating. 

Linney notes that has changed considerably. 18 months ago, was only deployable at the DP. 96 port DSLAMs didn’t even feature on vendors roadmaps. We reported Huawei targets Q4 for 96 ports.


BT identified 5 key developments expected: 

  • Enable higher bits per tone (12>14)
  • Improve the receiver sensitivity (<-150dBm/Hz)
  • Increase the transmit power (4>8dBm)
  • Optimise the frequency usage with VDSL
  • Increased vectoring group sizes (>96)



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BT: performance "pretty much spot on"
DSM Could Increase Speeds 25-50+ Megabit
DT: No 35b VDSL before 2018, modems not available
AT&T confirmed (unofficially.)
Andrew Ferguson: DSLAMs can be different
Energia Selling Nokia in Japan
Calix Clobbered by Services Cost
Switzerland: We're going; Forget fiber home except in new builds 
Nokia takes XG-FAST to 8 gig in the lab at nbn 
Huawei jumping in to G.faster 
Paris Summit 2017 9 to 11 May will be a great show
100,000 modems sold by Technicolor - running VDSL Australia: 
700,000 "FTTdp homes." Should use but may go VDSL. 
Tens of millions lines predicted 
"Study" predicts $200/line chip price in 2022 !? 

Read more ...