PRISM is a highly scalable, reliable, and extensible communications application server. It's a very proven platform and is used by several of the largest consumer and commercial VoIP providers. It's also used in Microsoft's Tellme service and is the foundation of all of Voxeo's products and services.
Asterisk can be painful, but they have a new ground-up project in very-early (pre-beta) stage called Asterisk SCF that is designed to achieve PRISM-like capabilities.
Comments
as akalsey said, Tropo is built on PRISM.
http://www.voxeo.com/prism
PRISM is a highly scalable, reliable, and extensible communications application server. It's a very proven platform and is used by several of the largest consumer and commercial VoIP providers. It's also used in Microsoft's Tellme service and is the foundation of all of Voxeo's products and services.
Asterisk can be painful, but they have a new ground-up project in very-early (pre-beta) stage called Asterisk SCF that is designed to achieve PRISM-like capabilities.