Supplementary call grabber service for mobile networks

• US 20030008643A1
• Filed: 03/20/2002
• Published: 01/09/2003
• Est. Priority Date: 03/22/2001
• Status: Active Grant

• Current Assignee: Unwired Planet LLC (JP Morgan Chase & Co)
• Original Assignee: Telefonaktiebolaget LM Ericsson
• Inventors: Hestir, Kristen Lee
• Granted Patent: US 7,369,844 B2
• Time in Patent Office: Days
• US Class Current: 455/417
• CPC Class Codes: H04M 2207/18 wireless networks
• CPC Class Codes: H04M 3/436 Arrangements for screening incoming calls , i.e. evaluating the characteristics of a call before deciding whether to answer it based on the calling party profile H04M3/42059; based on location H04M3/42348; based on presence H04M3/42365; diversion H04M3/54
• CPC Class Codes: H04M 3/533 Voice mail systems
• CPC Class Codes: H04M 3/54 Arrangements for diverting calls for one subscriber to another predetermined subscriber based on the calling party profile H04M3/42059; based on location H04M3/42348; based on presence H04M3/42365; to voice mail H04M3/53308
• CPC Class Codes: H04W 4/16 Communication-related supplementary services, e.g. call-transfer or call-hold

Abstract

A method and arrangement in a telecommunication network according to “GSM on the Net” or “IPT” intercepts an incoming call for a user registered at an access node for which an intercept service is active. Depending on the type of called party identifier provided with the incoming call, the call is routed (85) to the Service Node. The service node identifies (86) an alias of the access node and sends (87) the access node alias with called party data to the application node. The application node returns (88) to the service node a divert-to identifier associated with the access node, and the service node delivers (89) the call to a different access node identified by the divert-to identifier.

Claims

1. A telecommunication network call control signalling method for intercepting an incoming call destined for a user registered at an access node of the network, the network having an architecture of interworking nodes and further comprising a service node, an application node, and optionally a plurality of further access nodes and a gateway to an external telecommunication network, said method comprising:

receiving, in the service node, a first call control signal comprising called user data, determining whether or not an intercept service is active for the access node at which the user is registered; and

,

if the call intercept service is active;

determining an access node alias of the access node;

transferring the access node alias and called user data to the application node;

determining, by the application node, a predefined “

divert-to”

identifier applicable to the access node alias,

transferring to the service node the “

divert-to”

identifier and called user data including a service node command to continue routing the call on basis of the “

divert-to”

identifier and

delivering the call to a node identified by the “

divert-to”

identifier;

if the call intercept service is not active;

routing, by the service node, the call on basis of the called user data and the access node at which the user is registered.

2. The method of claim 1, further comprising:

determining, by the access node, that a respective call intercept service is active and forwarding the call to the service node.

3. The method of claim 1 or 2, wherein the network is according to GSM On the Net or IPT.

4. An incoming telephone call intercepting and delivering method in a first network, said first network operating according to “

GSM on the Net”

or “

IPT”

, said call being originated through a mobile telephone second network and destined for a called party with a MSISDN number and registered at an access node in said first network with a user alias, said access node maintaining in an associated VLR the user alias for the called party,

said method comprising;

creating records in a service node of the first network and the access node, the records indicating that a call intercept service is active for the access node,

creating in an application node of the first network a record of at least one divert-to identifier associated with the access node,

allocating in a VLR associated with the access node the user alias to the call,

forwarding (83,84) the user alias to a switch of the second network,

routing (85) the call to the service node with the user alias,

examining the record by the service node and determining (86) that a call intercept service for the access node is active,

forwarding (87) from the service node to an application node of the first network an identifier of the access node and called party data,

forwarding (88) from the application node to the service node, on basis of the access node identifier and the called party data, the at least one divert-to identifier, and

routing (89) in the first network the call to a destination identified by the at least one divert-to identifier.

5. An incoming telephone call intercepting and delivering method in a first network, said first network operating according to “

GSM on the Net”

or “

IPT”

, said call being originated through a mobile telephone second network and destined for a called party with a MSISDN number and registered at an access node in said first network without a user alias, said access node maintaining in an associated VLR a MSRN for the called party, said method comprising;

creating records in a service node of the first network and the access node, the records indicating that a call intercept service is active for the access node,

creating in an application node of the first network a record of at least one divert-to identifier associated with the access node,

forwarding (93) the MSRN to a HLR of the second network, whereby the networks route (95) the call to the service node,

forwarding (96) the call carrying the MSRN to the service node,

determining (97) by the service node that the called party is registered without a user alias and that the call intercept service is active for the access node,

forwarding from the service node to an application node of the first network a service information request with the access node alias and called party data,

forwarding from the application node to the service node an information response with the at least one divert-to identifier, and

delivering the call from the service node to a node identified by the at least one divert-to identifier.

7. The method of any one of the claims 5, 6 or 7, wherein the “

divert-to”

identifier is a number or an alias.

6. An incoming telephone call intercepting and delivering method in a first network, said first network operating according to “

GSM on the Net”

or “

IPT”

, said call being originated through a second network and destined for a called party having a user alias and registered at an access node in said first network with the user alias, said access node optionally maintaining in an associated VLR the user alias for the called party,

said method comprising;

creating records in a service node of the first network and the access node, the records indicating that a call intercept service is active for the access node,

creating in an application node of the first network a record of at least one divert-to identifier associated with the access node,

receiving (110) at the service node the call with the user alias,

determining (111) by the service node the access node of the called party user alias and that the call intercept service is active for the access node,

forwarding (112) from the service node to the application node a service information request with the access node alias and called party data,

forwarding from the application node to the service node an information response with the at least one divert-to identifier, and

delivering the call from the service node to a node identified by the at least one divert-to identifier.

8. The method of claim 8, wherein the number or an E.164 number.

9. A call control signalling arrangement in a telecommunication network for intercepting an incoming call destined for a user registered in the network, the network having an architecture of interworking nodes and comprising a service node, an application node, at least one access node and, optionally, a gateway to an external telecommunication network,

the service node and the access node each including a record of an indicator for a call intercept service being active for the access node, the application node including a record of least one divert-to identifier associated with the access node,

wherein:

the service node comprises;

a means for determining, on reception of an incoming call, an access node alias of an access node for which a call intercept service is active,

a means for holding routing of an incoming call for a user registered at an access node having an active intercept service, and

a means for communicating the access node alias to the application node;

the application node comprises;

a means for determining, on reception of the access node alias, a pre-defined “

divert-to”

identifier, and

a means for issuing to the service node a routing instruction including the “

divert-to”

identifier; and

the service node comprises;

a means for executing the routing instruction;

whereby the incoming call is routed by the service node to the “

divert-to”

identifier.