Abstract: There are provided methods and systems for authenticating a user. A method includes receiving a voice signature certificate corresponding to a setup portion of a Voice over Internet Protocol (VoIP) call. The VoIP call further has a voice conversation portion. The voice signature certificate includes a voice signature segment. The method further includes reproducing the voice signature segment to enable verification of voice continuity from the setup portion to the voice conversation portion. The verification is performing by comparing the voice signature segment to a user's voice during the voice conversation portion.

Abstract: A caller verification system and method include generating a challenge to be sent to a caller which requires a response from the caller prior to accepting a call. A response or lack thereof is determined from the caller, and the response is analyzed relative to an acceptable response to determine whether the caller is acceptable to communicate with. If the caller is acceptable, the call may be accepted.

Abstract: The present invention provides a method, system and program product for enhancing communications between endpoints. Specifically, the present invention provides mechanisms (e.g., routing controllers either at a network or application layer) that negotiate and specify which network interface to use at each endpoint (both sending and receiving) in multi-homing interface environments. This approach allows the application traffic to be routed through these two specified network interfaces for the better end-to-end QoS. This network interfaces used can also be dynamic changed (e.g., in real-time) to adapt to changing conditions of the network links.

Abstract: There are provided methods and systems for authenticating a user. A method includes receiving a voice signature certificate corresponding to a setup portion of a Voice over Internet Protocol (VoIP) call. The VoIP call further has a voice conversation portion. The voice signature certificate includes a voice signature segment. The method further includes reproducing the voice signature segment to enable verification of voice continuity from the setup portion to the voice conversation portion. The verification is performing by comparing the voice signature segment to a user's voice during the voice conversation portion.

Abstract: A caller verification system and method include generating a challenge to be sent to a caller which requires a response from the caller prior to accepting a call. A response or lack thereof is determined from the caller, and the response is analyzed relative to an acceptable response to determine whether the caller is acceptable to communicate with. If the caller is acceptable, the call may be accepted.