System operator Switching phone, PABX, IP-PBXTransmission system use and accessRecording system monitoring callsSystems Conference Audition / video conferencingSystems Conference Facilities Wireless WiFi, WiMAXEquipment to the HF / UHF / VHF, and Radio trunking systemEquipment information satellites, positioning, guide marineSolutions contact center / call center, voicemail, audio text, IVRSolutions infrastructure Data CenterCommunications solutions to combine and integrateSoftware media specificConsulting, design, construction, installation, warranty, maintenanceManagement systems, training, technology transfer