Method and system for enabling mobility awareness single number service

A method of providing to a user a single number service in a system comprising a plurality of networks, the system having for said user a single number record table including a service preference list comprising a list of candidate services for said user, wherein the method comprises acts of:

• storing, into an availability mapping table for the user, a plurality of user service availability information and a plurality of network access availability information;
• updating the user availability mapping table when a network report message coming from said user reports that at least one change has occurred in the user service availability information of the availability mapping table;
• receiving from a caller a single number service request for reaching the user;
• and
• returning to the caller a single number service reply message corresponding to the first candidate service on the service preference list available according to the user availability mapping table.

A computer readable medium associated with a device having a sequence of instructions stored thereon which, when executed by a processor of the device, causes the processor to implement a method of providing to a user a single number service in a system comprising a plurality of networks, the system having for said user a single number record table including a service preference list comprising a list of candidate services for said user, wherein the sequence of instructions comprises:

• instructions for storing, into an availability mapping table for the user, a plurality of user service availability information and a plurality of network access availability information;
• instructions for updating the user availability mapping table when a network report message coming from said user reports that at least one change has occurred in the user service availability information of the availability mapping table;
• instructions for receiving from a caller a single number service request for reaching the user;
• and
• instructions for returning to the caller a single number service reply message corresponding to the first candidate service on the service preference list available according to the user availability mapping table.

A network entity configured to provide to a user a single number service in a system comprising a plurality of access networks, the network entity having for said user a single number record table including a service preference list comprising a list of candidate services for said user, wherein the network entity is arranged to:

• store, into an availability mapping table for the user, a plurality of user service availability information and a plurality of network access availability information;
• update the user availability mapping table when a network report message coming from said user reports that at least one change has occurred in the user service availability information of the availability mapping table;
• receive from a caller a single number service request for reaching the user;
• and
• return to the caller a single number service reply message corresponding to the first candidate service on the service preference list available according to the user availability mapping table.

A system for providing to a user a single number service, the system comprising a plurality of networks, and having for said user a single number record table including a service preference list comprising a list of candidate services for said user, wherein the system comprises;

• an availability mapping table for storing for the user a plurality of user service availability information and a plurality of network access availability information;
• a mobility management service configured to update the user availability mapping table when a network report message coming from said user reports that at least one change has occurred in the user service availability information of the availability mapping table;
• and
• a single number manager configured to:
• receive from a caller a single number service request for reaching the user;
• and
• return to the caller a single number service reply message corresponding to the first candidate service on the service preference list available according to the user availability mapping table.