BNT-007 fixed telephone company firewall alone is developed, with the country's first IP telephone firewall, synchronized global market!
Five product features: 1. Blacklist features: refusing to blacklist all telephone, direct hang up. 2. Whitelist function: to resist outside the white list of all telephone. 3. Burglar a function: to prevent all string line, malicious phone stolen. 4. Secret functions: to prevent eavesdropping connect your call ext content. 5. Anti-Fax: refusal to junk fax, fax advertisements.