SIP proxy


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SIP proxy

(Session Initiation Protocol proxy) A proxy server that allows SIP-based telephony packets to traverse the network's firewall. The SIP proxy takes over call control and provides address translation in order to direct calls to the appropriate phones within the network. Deployed in companies with many SIP phones, a SIP proxy offers a very comprehensive solution for enterprises. For example, it supports authentication, encryption, telecommuters and can even serve as backup for the PBX.

Stateless Vs. Stateful
A stateless SIP proxy establishes the connection and gets out of the way. A stateful SIP proxy keeps track of the call and supports more sophisticated functions such as call routing and caller filtering. See SIP ALG, SIP and proxy server.
References in periodicals archive ?
Interactive Intelligence is offering its SIP proxy in three versions - Interaction SIP Proxy([TM]), Basic; Interaction SIP Proxy([TM]), Business Continuity; and Interaction SIP Proxy([TM]), Load Balancer - to accommodate all sizes and requirements of distributed enterprises and contact centers.
The ITSP in a Box is an all in one package that includes; a SIP proxy server, Prepaid and Postpaid Billing, Voice Mail (light), and SIP soft-phone clients.
SIP proxy servers are used to more efficiently, securely, and cost-effectively route session initiation protocol-based messages over IP networks for voice over IP (VoIP) communications.
where he managed 5 successful releases of Ciscos' SIP Proxy Server and, led a team that developed Linux infrastructure for Cisco VoIP products.
The BIG-IP SIP Load Balancing Solution provides high scalability, availability, and reliability to the SIP Proxy, Session Border Controller, media servers and many other SIP devices.
The Windows-based product, called Interaction SIP Proxy, Advanced Version(TM), enables organizations to intelligently route SIP-based messages over IP networks, and includes fault-tolerant routing, load-balancing, and advanced security.
The Interactive Intelligence SIP Proxy has helped me achieve this objective by providing sophisticated fault-tolerant features at about half the cost of competitive proxy solutions and, most importantly, it's helped to ensure that our customer service levels are always at their peak.
Add to that its free SIP proxy server, an all-software version, and a unique converged applications architecture, and you've got an incredibly compelling interaction management solution for contact centers and any organization wanting to reduce costs, simplify management, increase flexibility and optimize investment protection.
com) launches SIPoint server that consists of SIP proxy, registrar, XCAP functions and SIMPLE presence engine.
The addition of a free SIP proxy server and a new all-software option make this latest version of EIC a first-of-its kind product, and virtually unbeatable for companies that want a lower total cost of ownership and a faster return on investment from an IP PBX," Galitzine said.
VoIP: SIP proxy and gateway that can operate in both transparent and registering modes to support Voice over IP telephony