What Is Forking Proxy Server?
Forking proxy servers is the best way to get your SIP request to multiple locations. You've got one customer, and you need to send them a recommendation, not just a request. You need to fork that request to several locations, then gather the responses from each site and send them back to your customer. That's where a forking proxy server comes in. A forking proxy server will accept a request from any device connected to it and then distribute it among several locations/addresses/endpoints. Once those locations/addresses respond with their response, the forking proxy server will send that response back to the original sender. Forking proxy servers are helpful for enterprises when they must direct high volumes of SIP traffic to a centralized location for load-balancing purposes. Enterprises may have multiple SIP trunks to service incoming SIP requests. A forking proxy server directs a portion of the SIP requests to another location, distributed among different SIP addresses. When the responses from the forked areas are sent back to the originating device, you can use a forking proxy server to mix up the order of the answers so that all SIP requests are not sent to a single location. When you've got a call coming in, you need to figure out where it's going. Is it your SIP softphone? Your SIP rugged phone? Or maybe your fax machine? The forking proxy server examines each incoming SIP request and transfers it to various locations where the corresponding SIP user can be. For example, a SIP request made from a remote user can result in receiving the SIP base call simultaneously on a SIP rugged phone and SIP softphone. Processing this request takes help from a SIP-specific location server that records and maintains all SIP addresses or user locations. Once the user is located at any address or area, the forking proxy server transmits the specific call/data/request to that location.
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