![]() There are pictures there to help you identify which model you have. The Secure UNIStim protocol is implemented on the AS5300 or the CS2100 enables encryption of the UNIStim protocol with the use of a SMC 2450. To find your phone model go to the Digital Phones page under Systems > Digital Phones. The UNIStim protocol is implemented on Avaya IP PBX systems and licensed by third-party suppliers → History See for example the release of the company Spectralink, ĭetails on the implementation of the protocol UNISTIM are available in the document "Telephony and Data Network Services at a Telephone", filed in the United States Patent No. Contributions common between Nortel and Cisco Systems for example culminated in the publication of the IETF RFC 3054 "Media Gateway IP Phone Application Profile" outlining the options in the protocol Megaco/H.248 for IP command posts. Nortel has been very active in the standardization effort of these protocols within the IETF, drawing on its work with pre-standard UNIStim and already developed work on the Nortel IP PBX systems and its IP Centrex platforms from 1996. This approach allows manufacturers to quickly deliver a wide range of services without having to wait until these services are standardized. In this sense, the stimulus protocols differ from functional protocols (such as SIP or H.323) that impose on the one hand that the service is defined in the standard and that the terminal loads specific logic corresponding to the service in question. The "stimulus" can implement easily any new facility telephone without having to modify the software embedded in the terminals, which simplifies the procedures for maintenance and upgrade of the installed base. They simply reflect the basic actions a user can perform on his terminal (such as press a button) and the commands that can be sent to the display through the network to the terminal (such as turn a light on or display a message ). In order for electronic phone systems to intelligently route calls to their destination based on a variety of criteria (e.g., is the user allowed to make long distance calls, are they allowed to make long distance calls to a specific region, are they allowed to make long distance calls during a certain time of day, are they allowed to use more expensive routes as overflow if the least expensive routes are in use, etc.) Nortel created the ARS translators.The protocols works through a "master" / "slave" mode of operations. Why do I need ARS? Historically, the public telephone infrastructure was not as robust as it is today and the cost associated with making calls varied not only by the distance from calling party to called party, but also by the time of day. ARS or Alternate Route Selection is a method of intelligently routing calls, most commonly off-network (i.e., to a number that is not programmed on the local phone system.) Nortel Alternate Route Selection comes in two flavors, the “Basic Alternate Route Selection” (i.e., BARS) and “Network Alternate Route Selection” (i.e., NARS). ![]()
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