Session border controllers & SIP Firewalls and NATs

Acme Packet Net-Net Session Director and Net-Net Session Router-- High performance, high capacity SIP router and media flow control engine that optimally delivers premium interactive communications across wireline, wireless and cable IP networks. Security features include network access control with firewall pinholes created only for authorized media flows, and network topology hiding via double network address and port translations. A SIP Back-to-Back User Agent further secures signaling messages and a MGCP proxy/NAT features.