Incumbent operators that intend to launch IPTV and triple-play services may find ADSL2+ lacking, according to a new report, Fibre in the Last Mile: the business case for FTTP and VDSL, published by Analysys, the global advisers on telecommunications, IT and media.
"Real-life speeds of all DSL technologies can be as much as 40% lower at source than their theoretical maximum, and, despite continuing improvements in digital processing, ADSL2+ does not leave a lot of reliable bandwidth to play with over and above one HDTV stream," says Martin Scott, co-author of the report. "Standard digital TV may provide a stop-gap for the near future, but HDTV will be the future standard, and ADSL2+ won't cope. If ADSL2+ isn't enough then operators must look to VDSL2 and fibre," adds Scott.