SIP Redirect Server
When using SIP for signalling, your Proxy server forwards the SIP Invite message from the client (end user) to Invite Networks Redirect server. Invite Networks server makes a number check in the database and sends back a SIP redirection response message 302 (Moved temporarily) to the Proxy server.
The proxy server must be able to handle the contact information in the 302 message and to create a new Invite message.
