VoIP
FREQUENTIS acquires FRAFOS
FREQUENTIS strengthens cyber security competence with acquisition of German safety-critical VoIP expert, FRAFOS
Airspace World: Rohde & Schwarz equip North Macedonian ANSP with cutting-edge VoIP
Airspace World: Rohde & Schwarz equip North Macedonian ANSP with cutting-edge VoIP technology