Patent ID: 8755822

Claim:
A method comprising: receiving, at a gateway mobile location center from a location service client, a request to locate a mobile terminal in a cellular network, the request including an overlay identity statically identifying the mobile terminal to an overlay network without an active context established with the mobile terminal; sending, by said gateway mobile location center, a query to a database containing domain address information in order to derive domain address information corresponding to a mobile terminal home gateway mobile location center; receiving, by said gateway mobile location center, domain address information corresponding to said mobile terminal home gateway mobile location center in response to said query; sending, by said gateway mobile location center, said request to said mobile terminal home gateway mobile location center; sending, by said mobile terminal home gateway mobile location center, a conversion request to a Privacy Profile Register using said overlay identity; receiving, at said mobile terminal home gateway mobile location center, a cellular identity in response to said conversion request; using, by said mobile terminal home gateway mobile location center, said cellular identity to access a subscriber database; receiving, from said subscriber database, routing information of said mobile terminal; and initiating, by said mobile terminal home gateway mobile location center, a location service of said cellular network based on said cellular identity and on said routing information, wherein said location service is configured to provide a geographical location of said mobile terminal through a positioning functionality.