How Secure is the Nortel BCM 400 Business Telephone System?
For digital telephony, BCM offers many integrated security features, such as Restriction Services that enables system administrators to prevent toll fraud on a set-by-set basis by forcing each set to adhere to BCM call restrictions. For clients adopting VoIP, BCM delivers security across the network, including web proxy features similar to the Domain Naming System (DNS) proxy, integrated firewall and security measures like Network Address Translation (NAT), Basic and Stateful packet filtering, Point-to-Point Tunneling Protocol (PPTP), VPN support with IPSec and Secure Socket Layer (SSL).
