Serial number and manufacturer number of the 2N Door Station is needed! The Gold Professional license replaces the previous license. The following table contains dieLizenzmerkmale. A combination of licenses is unlimited möglich.Features: • Extended contact settings (time profile for contacts, activation at call setup, call keys) • HTTP contact control • Helios IP automation • E-mail TX (SMTP client) • Automatic configuration (TFTP client) • Individual announcements • tones and audio / video streaming (RTSP server) • ONVIF support • 802.1x support