Abstract: A device may measure a first performance, associated with legitimate traffic without attack traffic, of a Session Initiation Protocol (SIP)-based protection device implementing authentication; measure a second performance, associated with legitimate traffic and attack traffic, of the SIP-based protection device implementing authentication; and measure a third performance, associated with legitimate traffic and attack traffic, of the SIP-based protection device implementing authentication and return routability filtering.

Abstract: Methods and media for exchanging data between nodes of disconnected networks are provided, including: determining a query type based on whether a query received at a first node includes at least one keyword or at least a portion of a uniform resource identifier; performing a search of a cache based on the query and the query type; converting the query into a formatted query document; storing the formatted query document in a database, if the search of the cache does not yield at least a predetermined number of data items; retrieving the formatted query document from the database at a predetermined interval; multicasting the retrieved formatted query document from the first node to at least a second node; and receiving, at the first node, a formatted response document from the second node, the formatted response document resulting from a search of a cache of the second node.

Abstract: Systems, methods, and media for connecting emergency communications are provided.

Abstract: A device prevents theft of service attacks on a Session Initiation Protocol (SIP)-based device using an identity assurance protection mechanism, a multiple end-points protection mechanism, and an intrusion detecting protection mechanism.

Abstract: A method for creating, modifying, and terminating connections between Internet end systems, particularly, although not exclusively, for Internet telephony communication. The method relies on several request messages sent between a client and a server and the response messages sent back in response. Each request and response message may contain one or more header fields which modify or more uniquely link the messages with a given connection. On this basis, advanced telephony services, such as call forwarding, call transferring, and multiparty conferencing are provided.

Abstract: A device may measure a first performance, associated with legitimate traffic without attack traffic, of a Session Initiation Protocol (SIP)-based protection device implementing authentication; measure a second performance, associated with legitimate traffic and attack traffic, of the SIP-based protection device implementing authentication; and measure a third performance, associated with legitimate traffic and attack traffic, of the SIP-based protection device implementing authentication and return routability filtering.

Abstract: A method may include receiving a session control protocol request message and fingerprinting the received session control protocol message. The method may further include comparing the fingerprint of the received request message to a list of fingerprints associated with known malicious user agents and rejecting the request message when the fingerprint of the received message matches any fingerprint in the list of fingerprints associated with known malicious user agents. The method may include comparing the fingerprint of the received request message to the list of fingerprints associated with known non-malicious user agents and accepting the request message when the fingerprint of the received message matches any fingerprint in the list of fingerprints associated with known non-malicious user agents.

Abstract: A method may include receiving a session initiation protocol (SIP) request message and determining whether a dialog exists corresponding to the request message. The method may also include determining whether the dialog is in a first phase or a second phase when a dialog exists corresponding to the session control protocol message and querying a table indicating valid protocol requests for the determined phase to determine whether the received request message is valid. The method may include rejecting the request message when determined that the request message is not valid.

Abstract: A device may measure a first performance, associated with legitimate traffic without attack traffic, of a Session Initiation Protocol (SIP)-based protection device implementing authentication; measure a second performance, associated with legitimate traffic and attack traffic, of the SIP-based protection device implementing authentication; and measure a third performance, associated with legitimate traffic and attack traffic, of the SIP-based protection device implementing authentication and return routability filtering.

Abstract: A method for creating, modifying, and terminating connections between Internet end systems, particularly, although not exclusively, for Internet telephony communication. The method relies on several request messages sent between a client and a server and the response messages sent back in response. Each request and response message may contain one or more header fields which modify or more uniquely link the messages with a given connection. On this basis, advanced telephony services, such as call forwarding, call transferring, and multiparty conferencing are provided.

Abstract: A method may include receiving a first packet; determining, in a first processor, whether the first packet meets a criterion to be forwarded to a destination indicated in the first packet; receiving a second packet; determining whether the second packet is of a type for changing the criterion and sending the second packet to a second processor if the second packets is of the type for changing the criterion; receiving instructions, based on the second packet sent to the second processor, to change the criterion; and changing the criterion.

Abstract: A method may include receiving a first packet; determining, in a first processor, whether the first packet meets a criterion to be forwarded to a destination indicated in the first packet; receiving a second packet; determining whether the second packet is of a type for changing the criterion and sending the second packet to a second processor if the second packets is of the type for changing the criterion; receiving instructions, based on the second packet sent to the second processor, to change the criterion; and changing the criterion.

Abstract: Systems, methods, and media for connecting emergency communications are provided.

Abstract: In accordance with the present invention, computer implemented methods and systems are provided for reducing handoff latency in a wireless network. In response to detecting that a handoff is necessary, the present invention uses a selective scanning algorithm that includes the use of a channel mask and/or a caching algorithm for detecting one or more new access points.

Abstract: Methods and media for exchanging data between nodes of disconnected networks are provided, including: determining a query type based on whether a query received at a first node includes at least one keyword or at least a portion of a uniform resource identifier; performing a search of a cache based on the query and the query type; converting the query into a formatted query document; storing the formatted query document in a database, if the search of the cache does not yield at least a predetermined number of data items; retrieving the formatted query document from the database at a predetermined interval; multicasting the retrieved formatted query document from the first node to at least a second node; and receiving, at the first node, a formatted response document from the second node, the formatted response document resulting from a search of a cache of the second node.

Abstract: In accordance with the present invention, computer implemented methods and systems are provided for reducing handoff latency in a wireless network. In response to detecting that a handoff is necessary, the present invention uses a selective scanning algorithm that includes the use of a channel mask and/or a caching algorithm for detecting one or more new access points.

Abstract: A device may measure a first performance, associated with legitimate traffic without attack traffic, of a Session Initiation Protocol (SIP)-based protection device implementing authentication; measure a second performance, associated with legitimate traffic and attack traffic, of the SIP-based protection device implementing authentication; and measure a third performance, associated with legitimate traffic and attack traffic, of the SIP-based protection device implementing authentication and return routability filtering.

Abstract: A device prevents theft of service attacks on a Session Initiation Protocol (SIP)-based device using an identity assurance protection mechanism, a multiple end-points protection mechanism, and an intrusion detecting protection mechanism.

Abstract: Systems, methods, media, and devices for providing cooperation among digital processing devices in wireless networks are provided. In some embodiments, methods for moving a connection from one point of access to another point of access are provided, sending a request for information from a first mobile node to at least one other node, wherein the request for information contains first information identifying at least one point of access; receiving a response containing second information identifying at least one point of access from the at least one other node; and establishing a connection between the first mobile node and a point of access identified in the second information. In some embodiments, devices that can move a connection from one point of access to another point of access are provided.

Abstract: A device receives an attack on a Session Initiation Protocol (SIP)-based device, determines a type of the attack, and applies, based on the determined type of the attack, a return routability check filter to the attack.