Offer your customers a high-quality, high reliability service for their international calls through International Direct Dialling (IDD). It provides you with 'international call minutes' without prior reservation or commitment. This means that you can transport call traffic from anywhere in the UK to destinations all over the world, taking advantage of BT's extensive global network and long-standing relationships with other international carriers.
International Interconnect ISDN
International Interconnect ISDN is the equivalent service offering data transmission to overseas destinations. Based on clear 64Kbit/s paths, this is ideal for applications demanding high transmission quality and low error rates. Examples include remote access to overseas databases, distance learning, videoconferencing and the transmission of graphic designs and photographs. BT is a prime carrier of traffic of this kind and new routes are opening all the time.

Please note that there is a further billing outage planned for April 19th and 20th 2008.
UPDATED 22/01/2008
Please note that there are further billing outages planned for 19th January, 15th and 16th March 2008.
UPDATED 19/12/2007
BT is making a variation to the refund policy for WCCP migration and set up charges previously changed with effect on 11th September 2006.
UPDATED 01/11/2007