Abstract: A method is described and in one embodiment includes receiving at a first node in a communications network a Session Traversal Utilities for Network Address Translation (“STUN”) message associated with a first flow, wherein the STUN message comprises a flow attribute including corresponding to the first flow; analyzing the flow attribute at the first node; setting policy corresponding to the first flow in the network based on the analyzing, wherein setting the policy includes using the flow attribute of the STUN message to configure a network path for the first flow in the communications network; and forwarding the STUN message to a next network node.

Abstract: A method is described and in one embodiment includes receiving at a first node in a communications network a Session Traversal Utilities for Network Address Translation (“STUN”) message associated with a first flow, wherein the STUN message comprises a flow attribute including corresponding to the first flow; analyzing the flow attribute at the first node; setting policy corresponding to the first flow in the network based on the analyzing, wherein setting the policy includes using the flow attribute of the STUN message to configure a network path for the first flow in the communications network; and forwarding the STUN message to a next network node.

Abstract: A method is described and in one embodiment includes receiving at a first node in a communications network a message associated with a first flow, wherein the message comprises a flow treatment attribute including metadata indicative of how the first flow should be treated in the network; analyzing the flow treatment attribute at the first node; setting policy for treatment of the flow in the network based on the analyzing; and forwarding the message to a next network node.

Abstract: In one embodiment, a device in a network sends a first set of one or more packets at a first rate to a destination in the network. The device determines a queuing delay reporting time. The queuing delay reporting time represents an amount of time before an indication of a queuing delay associated with the sent first set of one or more packets is reported back to the device. The device determines a second rate based on the determined queuing delay reporting time and on a maximum allowable delay. The device sends a second set of packets at the second rate to the destination.

Abstract: A method is described and in one embodiment includes receiving at a first node in a communications network a message associated with a first flow, wherein the message comprises a flow treatment attribute including metadata indicative of how the first flow should be treated in the network; analyzing the flow treatment attribute at the first node; setting policy for treatment of the flow in the network based on the analyzing; and forwarding the message to a next network node.

Abstract: A system and method for maintaining provisioned configuration for an endpoint in a packet switched communications network are disclosed, the communications network utilizing a signalling protocol between the endpoint and at least one gatekeeper. The gatekeeper receives a request from the endpoint, determines the addresses of an assigned gatekeeper and at least one alternate gatekeeper, and transmits the addresses to the endpoint within the signalling protocol. The endpoint sends a message to its assigned gatekeeper, and if the assigned gatekeeper is responsive, the endpoint receives an indication confirming that the Gatekeeper is available. If the assigned gatekeeper is unresponsive, the endpoint registers with an alternate gatekeeper, but periodically sends a polling status request to its assigned gatekeeper, so that when the assigned gatekeeper becomes responsive, the endpoint may then register with its assigned gatekeeper.

Abstract: A method to prevent TTY/TDD (teletypewriter/telecommunications device for the deal) probing and unwanted TTY/TDD tone generation on voice gateways comprises detecting a PSTN textphone in a call path, if any; and providing visual clues to an end user, thereby avoiding generation of unwanted text by the end user. The visual clues may be in the form of a dialog box on a computer, warning messages on a phone, and/or the like.

Abstract: A network device having delayed call establishment is disclosed. The network device includes a port to allow the device to communicate with a called endpoint and a processor. The processor sends a call request message associated with a call to the called endpoint and receives a notification that a delay point has been reached. Alternatively, the network device includes a port to allow the device to communicate with a calling endpoint and a processor. The processor receives a call request message associated with a call from the calling endpoint, responds with a notification of delayed call establishment availability; and processes the call to a delay point. Once the delay point has been reached the processor determines if the call is to be established, and if the call is to be established, notify the called endpoint.

Abstract: A communication scheme allows two Voice Over Internet Protocol (VoIP) gateways that do not necessarily support a common set of Public Switched Telephone Network (PSTN) text terminal (TTY) modulations and which are communicating with dissimilar PSTN text terminal devices to negotiate a transition to text relay mode thus allowing those dissimilar PSTN text terminal devices to interwork with each other.

Abstract: A method for re-querying for routing information is disclosed. The method transmits an initial admission query to a gatekeeper or a request for routing information and receives an admission confirmation or routing information response with a destination address. The method then tries to establish a connection with the destination address. Upon reception of a call failure message including a failure cause, the method, optionally, increments a counter and transmits a re-query to the gatekeeper or other routing entity, and the re-query includes the failure cause and, optionally, a value of the query counter.

Abstract: Text is interleaved and transported along with media data over the same real-time Internet Protocol (IP) media transport session. A network processing device identifies text characters corresponding with text signaling. The identified text characters are formatted into text packets and sent over the same real-time IP media transport session used for real-time media transport. The media transport session can identify the sequence that the text characters are transmitted and can specify a maximum character transfer rate.

Abstract: In one embodiment, a method includes receiving a communication from a text telephone via a packet-switched network. The method also includes, automatically and without user intervention, generating a real-time text response to the communication from the text telephone and, automatically and without user intervention, communicating the real-time text response to the text telephone via the packet-switched network for presentation to a user at the text telephone.