British Telecom have now launched their
Web21c portal, which has been running for a number of months in a beta phase.
In brief, Web21c allows developers to access core services in BT's network via popular net development tools such as VB.NET, C#, Java, Python, PHP and soon also Perl and Ruby. The BT APIs allow access to services like 3rd party call control, conferencing, SMS, location and presence.
The commercial launch now includes a system for purchasing credits that are used to pay for the services that apps use. Interestingly the credits are used on a 'per invocation' basis, which means that calls are flat-rated. They also have a BT Marketplace site that allows application developers to add their app to a library, and promote in various ways using blogs, rating and community, perhaps learning some lessons from
Facebook.
It's interesting to see BT using some of the "Web 2.0" ideas to counter the threat from 'Internet edge' competitors who are now starting to break into telephony. With rumours that
GrandCentral is to be bought by Google, and more rumours about an IPO at
Jajah, there does seem to be some excitement coming into the Web 2.0 / telephony sector.