METHOD AND APPARATUS FOR VERIFYING ENCRYPTION OF SIP SIGNALLING

摘要

This invention relates to a method and apparatus for verifying encryption of SIP signalling. This invention relates to a method, system and computer program product for setting up a SIP communication session between at least two client SIP nodes over at least one proxy SIP node comprising: locating a proxy SIP node based on a destination client name and domain; setting up a secure signal connection between a calling client SIP node and the proxy SIP node; locating, from the proxy SIP node, the destination client IP address using the destination client name and domain; setting up an additional the secure signal connection from said proxy SIP node to a called client SIP node whereby the secure signal connection and the additional secure signal connection form a secure signal path; requesting the destination client SIP node return its IP address across the secure signal path; and using the returned IP address to set up a data connection between the calling client SIP node and the destination client SIP node.