Apparatus to override the redirect or reject feature at an SIP end point

• US 7,620,167 B2
• Filed: 09/21/2006
• Issued: 11/17/2009
• Est. Priority Date: 09/21/2006
• Status: Active Grant

• Current Assignee: Unify Patente GmbH & Co. KG (Atos SE)
• Original Assignee: Siemens Communications Incorporated (Siemens AG)
• Inventors: Kucmerowski, Dennis L., Samayamantry, Mallikarjuna
• Primary Examiner(s): Matar, Ahmad F
• Assistant Examiner(s): Nguyen, Khai N
• Application Number:
  US11/524,823
• Publication Number:
  US 20080112390A1
• Time in Patent Office: 1,153 Days
• Field of Search: 370/352, 379/441, 379/265.02, 379/233, 379/235, 379/266.01
• US Class Current: 379/212.01
• CPC Class Codes: H04L 12/66 Arrangements for connecting between networks having differing types of switching systems, e.g. gateways
• CPC Class Codes: H04M 2242/06 Lines and connections with preferential service
• 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: H04M 7/006 Networks other than PSTN/ISDN providing telephone service, e.g. Voice over Internet Protocol (VoIP) , including next generation networks with a packet-switched transport layer H04L65/00 takes precedence; aspects not specific to the type of network H04M3/00; special services in those networks H04M3/42

Abstract

In some embodiments, a do not redirect or reject call management system may include one or more of the following features: (a) a memory comprising, (i) a do not redirect or reject application that allows a caller to prevent a call recipient from redirecting or rejecting a call, and (b) a processor coupled to the memory that executes the do not redirect or reject application.

Claims

1. A do not redirect or reject call management system comprising:

a network server, said network server operating within a Session Initiation Protocol (SIP) network, said network server including;

a memory comprising;

a do not redirect or reject application that prevents a call recipient device from redirecting or rejecting a call; and

a processor coupled to the memory that executes the do not redirect or reject application,

wherein the call is placed on the SIP network, the call including a SIP request with a do not redirect or reject instruction, the SIP network including a caller device, the call recipient device and a redirect recipient device, the caller device, the call recipient device and the redirect recipient device in communication with said network server across said SIP network, the call recipient device associated with a first user and the redirect recipient device associated with a second user, the network server receives the call from the caller device and the network server directs the call to the call recipient device, the network server receives a redirect or reject instruction from the call recipient device and the network server determines if the redirect recipient device is reachable by sending another SIP request to the redirect recipient device and receiving a return of a SIP code from the redirect recipient device, the network server instructs the call recipient device to answer the call through the do not redirect or reject instruction that it must accept the call when the redirect recipient device is unreachable by receipt of the SIP code wherein the call recipient device will begin ringing, the network server routes the call to the redirect recipient device when the redirect recipient device is reachable.

2. The system of claim 1, wherein a do not redirect or reject instruction is present in a call request.

3. The system of claim 2, wherein the do not redirect or reject instruction is within a SIP header.

4. A method for preventing calls from being redirected or rejected executable by a network server of a Session Initiation Protocol (SIP) network, the method comprising the steps of:

receiving a call directed to a recipient device, the call including a SIP request with do not redirect or reject instructions;

routing the call through the SIP network, the SIP network including a caller device, the recipient device and a redirect recipient device, the caller device, the recipient device and the redirect recipient device In communication with said network server across said SIP network, the recipient device associated with a first user and the redirect recipient device associated with a second user;

receiving redirect or reject instructions from the recipient device;

determining it the redirect recipient device is available to take a redirected call by sending another SIP request to the redirect recipient device and receiving a return of a SIP code from the redirect recipient device;

redirecting the call when the redirect recipient device is available; and

instructing the recipient device that it must accept the call when the redirect recipient device is unavailable by receipt of the SIP code based upon the do not redirect or reject instructions wherein the recipient device will begin ringing.

5. The method of claim 4, further comprising the step of sending the call directly to the recipient device and instructing the recipient device to answer the call based on a priority or seniority of the caller device.