Cloud Telephony

Cloud telephony refers to the provision of telephony functions as a service delivered over the internet. The phone system is no longer operated on company premises but runs as a virtual instance in a provider's data centre. Voice transmission is based on voice over IP, usually using the SIP protocol. Connected endpoints include IP phones, softphones on PCs and smartphones, and DECT systems. Typical features include number management, call distribution, call queues, voicemail, conferencing and integration with CRM and collaboration platforms. For businesses, investment in on-site telephony hardware is no longer required, as updates and maintenance are handled by the provider. Sites and users can be added flexibly, including remote workplaces. Stable voice quality requires sufficient bandwidth, low latency and prioritisation of voice traffic through quality of service.