Tag Archives: RFC 3581

Unicoi Systems Fusion SIP 5.1

Unicoi Systems (Unicoi) introduced version 5.1 Fusion SIP tool for embedded systems developers. The latest version of the tool offers support for secure VoIP telephony and intercommunications equipment. Fusion SIP v5.1 provides updated support for NAT Traversal (RFC 3581) and Session Timers (RFC 4028).

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