3CX Phone Systems
3CX is a software based private branch exchange (PBX) based on the SIP (Session Initiation Protocol) standard. It enables extensions to make calls via the public switched telephone network (PSTN) or via Voice over Internet Protocol (VoIP) services.
Yealink provides one-stop Communication Terminal prodcuts for businesses of all sizes. Its wide product range satisfies diverse customer needs and usage scenarios. The Yealink Unified Communication Product Portfolio includes video conferencing system, IP conference phones, desk IP phones, wireless DECT phones and more.
Patton designs and manufactures electronic communications equipment for network access, connectivity, voice-over-IP, and video surveillance.