Conserving call logic during handoff

摘要

Conserving call logic during handoff may be provided. First, a call may be received at a first server. Next, the first server may determine that it cannot handle the call. Then the call may be transferred by the first server to a second server with enough information so that the second server can take up the call where the first server left off. Transferring the call to the second server with enough information so that the second server can take the call up where the first server left off may comprise placing the information in a REFERRED-BY header and sending the REFERRED-BY header to the second server.

主权项

1. A method for conserving call logic during handoff, the method comprising:
receiving a call at a first server; determining that a voice mail box associated with a called party associated with the call is not located on the first server; in response to determining that the voice mail box associated with the called party associated with the call is not located on the first server, querying a database on a network to determine where the voice mail box associated with the called party is located; determining that the voice mail box associated with the called party associated with the call is located on a second server; and transferring the call to the second server with enough information so that the second server can take up the call where the first server left off, wherein transferring the call comprises sending a header and a context token, the header and the context token transitioning the second server to a point in a finite state machine representative of the point where the first server left off.