Method and system for providing wireless-specific services for a wireless access network

• US 7,058,033 B1
• Filed: 07/18/2001
• Issued: 06/06/2006
• Est. Priority Date: 07/18/2001
• Status: Active Grant

• Current Assignee: Cisco Technology, Inc. (Cisco Systems, Inc.)
• Original Assignee: Cisco Technology, Inc. (Cisco Systems, Inc.)
• Inventors: Kachhla, Rasik, Dantu, Ramanamurthy, Chiang, Shihlung, Yin, Haochih P
• Primary Examiner(s): Pham, Chi
• Assistant Examiner(s): ABELSON, RONALD B
• Application Number:
  US09/908,081
• Time in Patent Office: 1,784 Days
• Field of Search: 370/331, 370/338, 370/329, 370352-356, 370/401, 455/436, 455/435.1
• US Class Current: 370/331
• CPC Class Codes: H04L 65/1069 Session establishment or de-establishment
• CPC Class Codes: H04L 65/1073 Registration or de-registration
• CPC Class Codes: H04L 65/1096 Supplementary features, e.g. call forwarding or call holding systems providing special services or facilities to telephony subscribers H04M3/42
• CPC Class Codes: H04L 65/1104 Session initiation protocol [SIP]
• CPC Class Codes: H04L 67/14 Session management for real-time applications in data packet communications networks H04L65/1066
• CPC Class Codes: H04L 67/147 Signalling methods or messages providing extensions to protocols defined by standardisation
• CPC Class Codes: H04W 8/12 between location registers or mobility servers
• CPC Class Codes: H04W 80/10 adapted for application session management, e.g. SIP [Session Initiation Protocol] connection management H04W76/00; arrangements for session management H04L67/14

Abstract

A method and system for providing wireless-specific services for a wireless access network includes receiving at a call agent of a wireless access network a call origination for a mobile device. Whether the device is registered on the wireless access network is determined. If the mobile device is not registered, whether the mobile device is active is determined at a mobility control function (MCF). If the mobile device is active, the call is connected to the mobile device with a call agent based on a temporary line directory number (TLDN) assigned by the MCF and passed to the call agent in an extended session initiation protocol (SIP) message.

Claims

1. A method of call handling for a wireless access network, comprising:

receiving at a call agent of the wireless access network a call origination for a mobile device;

determining whether the mobile device is registered on the wireless access network;

if the mobile device is not registered, determining at a mobility control function (MCF) whether the mobile device is active; and

if the mobile device is active, connecting the call to the mobile device with a call agent based on a temporary line directory number (TLDN) assigned by the MCF and passed to the call agent in an extended session initiation protocol (SIP) message.

2. The method of claim 1, further comprising if the mobile device is not active, connecting the call to a voice mail server identified by profile information for the mobile device.

3. The method of claim 1, further comprising:

if the mobile device is registered, retrieving profile information for the mobile device at the call agent; and

routing the call to the mobile device in the wireless access network through the MCF using a SIP message.

4. A system of call handling for a wireless access network, comprising:

means for receiving at a call agent of the wireless access network a call origination for a mobile device;

means for determining whether the mobile device is registered on the wireless access network;

means for if the mobile device is not registered, determining at a mobility control function (MCF) whether the mobile device is active; and

means for if the mobile device is active, connecting the call to the mobile device with a call agent based on a temporary line directory number (TLDN) assigned by the MCF and passed to the call agent in an extended session initiation protocol (SIP) message.

5. The system of claim 4, further comprising means for if the mobile device is not active, connecting the call to a voice mail server identified by profile information for the mobile device.

6. The system of claim 4, further comprising:

means for if the mobile device is registered, retrieving profile information for the mobile device at the call agent; and

means for routing the call to the mobile device in the wireless access network through the MCF using a SIP message.

7. A system of call handling for a wireless access network, comprising:

a logic encoded in media; and

logic operable to receive at a call agent of a wireless access network a call origination for a mobile device, to determine whether the mobile device is registered on the wireless access network, to, if the mobile device is not registered, determine at a mobility control function (MCF) whether the mobile device is active and to, if the mobile device is active, connect the call to the mobile device with the call agent based on a temporary line directory number (TLDN) assigned by the MCF and passed to the call agent in an extended session initiation protocol (SIP) message.

8. The system of claim 7, the logic further operable to, if the mobile device is not active, connect the call to a voicemail server identified by profile information for the mobile device.

9. The system of claim 7, the logic further operable to, if the mobile device is registered, retrieve profile information for the mobile device at the call agent and to route the call to the mobile device in the wireless access network through the MCF using a SIP message.