Creating a globally unique identifier of a subscriber device

A node for use in a packet-switched services network, comprising:

• an interface to receive a registration request from a mobile device sent by an aggregation device associated with an enterprise network to register the mobile device in the services network, wherein a unique identifier of the mobile device is previously unknown to the packet-switched services network, wherein the registration request contains an identifier of the aggregation device and identification information of the mobile device;
• and
• a processor to dynamically create a globally unique identifier of the mobile device based on the identifier of the aggregation device and the identification information of the mobile device, wherein the globally unique identifier is used for uniquely identifying the mobile device in the packet-switched services network;
• wherein the identifier of the aggregation device is a SIP address of record of the aggregation device and the identification information of the mobile device includes concatenation of a MAC address of the aggregation device, a mobile identity number of the mobile device, and an electronic serial number of the mobile device;
• and
• wherein the globally unique identifier of the mobile device is formed from a combination of the SIP address of record of the aggregation device, the MAC address of the aggregation device, the mobile identity number of the mobile device, and the electronic serial number of the mobile device.

An article comprising at least one non-transitory computer-readable storage medium containing instructions that when executed cause a node in a packet-switched services network to:

• receive, from an aggregation device in a first network, a registration request from a mobile device containing an identifier of the aggregation device and identification information of the mobile device attached to the first network, wherein the identification information is previously unknown to the packet-switched services network;
• and
• dynamically create a globally unique identifier of the mobile device based on the identifier of the aggregation device and the identification information of the mobile device, wherein the globally unique identifier is used for uniquely identifying the mobile device in the packet-switched services network;
• wherein the identifier of the aggregation device is a SIP address of record of the aggregation device and the identification information of the mobile device includes a concatenation of a MAC address of the aggregation device, a mobile identity number of the mobile device, and an electronic serial number of the mobile device;
• and
• wherein the globally unique identifier of the mobile device is formed from a combination of the SIP address of record of the aggregation device, the MAC address of the aggregation device, the mobile identity number of the mobile device, and the electronic serial number of the mobile device.