ISPs in the UK have also indicated they are concerned about services that put pressure on their networks like the BBC's video traffic, which may lead to them charging.
This is not compulsory and in the UK messages are written rather than recorded on video.
这并非强制性的，在英国人们更愿意写封短信，而不是录像。
3
Created by the UK-based XPT (Rob Bevan and Tim Wright), it told its story with the reader, sending personalised emails and narrative video clips based on feedback to the site.