Nanjing, China – February 6th, 2023 – Htek, the world-class developer and manufacturer of audio and video VoIP communication devices, announced that four new models of its UCV series smart video phones, UCV53, UCV52, UCV50 and UCV10, are now available for sale.Htek UCV series smart video phones carry over the advantages of traditional VoIP and start a new era of smart office.