IMS Interconnect: Peering, Roaming
Published 2007, Posted January 2008
The paper describes the basic IMS
security functions defined by the standards organizations and how those
functions apply to an IMS interconnect scenario.
As carriers complete their initial IMS trials and begin to commercially deploy IMS-based services to their subscribers, the business benefits for IMS interconnect and peering will drive carriers to explore how best to provide connectivity to other carriers’ subscribers.
By implementing this connectivity according to the security provisions in the existing standards, and by focusing on the areas with potential vulnerabilities, such as utilizing a secure DNS/ENUM architecture and by securing the traffic flows between one another, carriers can benefit both their subscribers and their own bottom line in a more secure way.
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