System and method for assigning call priority

The method according to claim 2, wherein the second information element is derived from the first information element by

• determining a priority according to the precedence indicator,
• analyzing if the determined priority is in accordance with at least one priority requirement determinable by the controller, and
• setting the priority indicated by the second information element according to a result of said analysis.

The method according to any of the preceding claims, wherein the first information element is received (207,304) from the switch (8) in a notification message and the second information element is sent (208,305) to the switch (8) in an instruction message instructing said switch (8) to handle the call according to the priority indicated by the second information element.

The method according to any of the preceding claims, wherein the first information element is received (406) from a home database (2) by a response message responsive to an interrogation message sent (402) from the controller (3) to the home database (2).

The method according to any of the preceding claims, wherein said Intelligent telecommunication network comprises a Customised Application for Mobile Enhanced Logic CAMEL telecommunication network with the controller (3) comprising a GSM Service Control Function gsmSCF (3).

The method according to any of the preceding claims, wherein the call prioritization service is an enhanced Multi Level Precedence and Pre-emption service eMLPP and the precedence indicator is an eMLPP Level of Precedence.

The method according to any of the preceding claims, wherein the sending of the second information element is effected according to the priority indicated by the second information element.

The method according to any of the preceding claims, wherein the first information element is received by at least one of the notification message and response message transmitted according to the priority associated with the precedence indicator.

A controller (3) providing logic for an Intelligent telecommunications network, the controller (3) comprising a receiver for receiving messages, a transmitter for sending messages and a processor for processing messages and information, wherein

• the receiver is adapted to receive a first information element relating to a precedence indicator of a call prioritization service,
• the processor is adapted to derive a second information element from the first information element for instructing a switch (5,8) to handle a call according to a priority indicated by the second information element,
• the transmitter is adapted to send the second information element to the switch (5,8).

A switch (5,8) for handling a call in an Intelligent telecommunication network, the switch (5,8) comprising a receiver for receiving messages, a transmitter for sending messages and a processor for processing messages and information, wherein

• the receiver is adapted to receive (208, 305) an instruction message from a controller (3) providing logic for the Intelligent telecommunications network, the instruction message comprising a second information element derived from a first information element relating to a precedence indicator of a call prioritization service for instructing the switch (5,8) to handle the call according to a priority indicated by the second information element, and
• the processor is adapted to initiate a handling of the call according to the priority indicated by the second information element.

A computer program loadable into a processor of a controller (3) providing logic for an Intelligent telecommunications network, wherein the computer program comprises code adapted to obtain (207, 304, 406) a first information element relating to a precedence indicator of a call prioritization service, to derive a second information element from the first information element for instructing a switch (5,8) to handle a call according to a priority indicated by the second information element, and to initiate a sending (208, 305, 407) of the second information element to the switch (5,8).

A computer program loadable into a processor of a switch (5,8), wherein the computer program comprises code adapted to process a received instruction message from a controller (3) providing logic for an Intelligent telecommunications network, the instruction message comprising a second information element derived from a first information element relating to a precedence indicator of a call prioritization service for instructing the switch (5,8) to handle the call according to a priority indicated by the second information element, and the program further comprising code adapted to initiate a handling of the call according to the priority indicated by the second information element.