Method and system for providing call-forwarding status indications in a packet-switched network
First Claim
Patent Images
1. A method, comprising:
- sending a first subscription message over a packet-switched network, using Session Initiation Protocol (SIP) event notification, to receive a call forwarding status notification associated with a call forwarding service of a user when a state associated with the call forwarding service changes;
receiving a call forwarding status notification when a state associated with the call forwarding service changes;
sending a second subscription message over the packet-switched network, using Session Initiation Protocol (SIP) event notification, to receive a call redirection notification associated with the call forwarding service of the user when a call has been forwarded; and
interpreting the call forwarding status notification at a device locally coupled to a user interface of the user, wherein the device is capable of notifying the user when the call has been forwarded;
wherein the first subscription message comprises a first field identifying the call forwarding service and a second field defining the format of the call forwarding status notification.
2 Assignments
0 Petitions
Accused Products
Abstract
Preferred embodiments of the invention provide systems and methods subscribing to receive a call forwarding status notification associated with a call forwarding service, receiving a call forwarding status notification when a state associated with the call forwarding service changes, and interpreting the call forwarding status notification.
164 Citations
14 Claims
-
1. A method, comprising:
-
sending a first subscription message over a packet-switched network, using Session Initiation Protocol (SIP) event notification, to receive a call forwarding status notification associated with a call forwarding service of a user when a state associated with the call forwarding service changes; receiving a call forwarding status notification when a state associated with the call forwarding service changes; sending a second subscription message over the packet-switched network, using Session Initiation Protocol (SIP) event notification, to receive a call redirection notification associated with the call forwarding service of the user when a call has been forwarded; and interpreting the call forwarding status notification at a device locally coupled to a user interface of the user, wherein the device is capable of notifying the user when the call has been forwarded;
wherein the first subscription message comprises a first field identifying the call forwarding service and a second field defining the format of the call forwarding status notification. - View Dependent Claims (2, 3, 4, 5)
-
-
6. A method, comprising:
-
receiving a first subscription message over a packet-switched network, using Session Initiation Protocol (SIP) event notification, to provide a call forwarding status notification associated with a call forwarding service of a user; determining a change in a state associated with the call forwarding service; providing a call forwarding status notification to a device locally coupled to a user interface of the user when the state associated with the call forwarding service changes; receiving a second subscription message over a packet-switched network, using Session Initiation Protocol (SIP) event notification, to provide a call redirection notification associated with the call forwarding service of the user when a call has been forwarded; and providing the call redirection notification to the device locally coupled to a user interface of the user when the call has been forwarded, wherein the device is capable of notifying the user when the call has been forwarded;
wherein the first subscription message comprises a first field identifying the call forwarding service and a second field defining the format of the call forwarding status notification. - View Dependent Claims (7, 8, 9, 10)
-
-
11. A system comprising:
-
a subscriber module, using Session Initiation Protocol (SIP) event notification, to subscribe to and receive a call forwarding status notification associated with a call forwarding service of a user and to subscribe to and receive a call redirection notification associated with the call forwarding service of the user and the subscriber module transmits a subscribe message over a packet switched network, the subscribe message comprising a first field identifying the call forwarding service and a second field defining the format of the call forwarding status notification; and an interpreter module at a device locally coupled to a user interface of the user to interpret the received call forwarding status notification and to interpret the received call redirection notification, wherein the device is capable of notifying the user when a call has been forwarded. - View Dependent Claims (12)
-
-
13. A system, comprising:
-
a subscribe module, using Session Initiation Protocol (SIP) event notification, to receive a subscription to provide a call forwarding status notification associated with a call forwarding service of a user and to receive a subscription to provide a forwarded call notification for one or more calls forwarded for the user and the subscribe module receives a subscribe message over a packet-switched network, the subscribe message comprising a first field identifying the call forwarding service and a second field defining the format of the call forwarding status notification; a notify module to determine a change in a state associated with the call forwarding service and provide a call forwarding status notification to a device locally coupled to a user interface of the user when the state associated with the call forwarding service changes and to identify a forwarded call and provide a call redirection notification to the device when a call associated with the call forwarding service is forwarded, wherein the device is capable of notifying the user when the call has been forwarded. - View Dependent Claims (14)
-
Specification