With recent technological advances in Voice over IP (VoIP), the communications industry has, at last, reached a position of strength. In the past, the technology lacked the maturity to deliver a profitable and sustainable VoIP business model; but with recent breakthroughs they have now reached a position in which carriers can introduce profitable, carrier-class VoIP services.

This white paper explores the business and technical requirements facing the carrier in the delivery of carrier-class VoIP services and, in particular, looks at the role of the Session border controller in overcoming these historic challenges.