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公开(公告)号:US20060272009A1
公开(公告)日:2006-11-30
申请号:US11141516
申请日:2005-05-31
Applicant: David Stott
Inventor: David Stott
IPC: H04L9/32
CPC classification number: H04L29/06027 , H04L63/029 , H04L65/1006
Abstract: A new method is provided for establishing real-time services that can coexist with NAT and firewalls, even when the signaling protocol uses cryptography. A communication channel between the call server and the middlebox passes information between them about the bearer channels associated with each signaling session.