SYSTEM AND METHOD FOR CONVEYING END-TO-END CALL STATUS
First Claim
1. A computer-readable storage medium operating in a Calling Card Server (CCS), comprising computer instructions for:
- receiving from a Unified Messaging System (UMS) a Session Initiation Protocol (SIP) SUBSCRIBE message over a primary call leg requesting outdial event notification on a secondary call leg;
placing a call on the secondary call leg responsive to receiving on the primary call leg outdial information from the UMS; and
submitting a SIP NOTIFY message to the UMS that indicates outdial events associated with call status of the call on the secondary call leg.
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Accused Products
Abstract
A system that incorporates teachings of the present disclosure may include, for example, a Unified Messaging System having a controller element to submit to a Calling Card Server (CCS) over a primary call leg a Session Initiation Protocol (SIP) SUBSCRIBE message requesting outdial event notification for a call placed on a secondary call leg responsive to a reply of a voicemail message, and receive over the primary call leg a SIP NOTIFY message from the CCS indicating outdial events associated with placing the call over the secondary call leg. Additional embodiments are disclosed.
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Citations
25 Claims
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1. A computer-readable storage medium operating in a Calling Card Server (CCS), comprising computer instructions for:
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receiving from a Unified Messaging System (UMS) a Session Initiation Protocol (SIP) SUBSCRIBE message over a primary call leg requesting outdial event notification on a secondary call leg; placing a call on the secondary call leg responsive to receiving on the primary call leg outdial information from the UMS; and submitting a SIP NOTIFY message to the UMS that indicates outdial events associated with call status of the call on the secondary call leg. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A Unified Messaging System (UMS), comprising a controller to:
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submit to a Calling Card System (CCS) over a primary call leg a Session Initiation Protocol (SIP) SUBSCRIBE message requesting outdial event notification for a call on a secondary call leg; and receive over the primary call leg a SIP NOTIFY message from the CCS indicating outdial events associated with placing the call over the secondary call leg. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16, 17, 18)
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- 19. A Calling Card System (CCS), comprising a controller to transmit a Session Initiation Protocol (SIP) NOTIFY message to a Unified Messaging System (UMS) over a primary call leg, wherein the SIP NOTIFY message includes call status associated with a secondary call leg.
Specification