Refer to the list of phones on the Kerio website to identify the type phone model that meets your budget and feature requirements. Kerio Operator automatically provisions phones from manufacturers like Polycom, Cisco, Snom, Grandstream, Mitel, and Yealink.
That communicates via SIP Session Initiation Protocol - A communication protocol used for voice and video calls in Internet telephony or private IP telephone systems. To place calls through Kerio Operator, you need a VoIP Voice over Internet protocol - A digital telephone system that uses the internet as the transmission medium, rather than the PSTN.On the Kerio website to determine if Kerio Operator meets the requirements of the service provider you select. Refer to the supported phone cards and tested SIP providers Before you install Kerio Operator, identify the type of telephone service that meets your budget and infrastructure.To place calls through the Public Switched Telephone Network ( PSTN Public switched telephone network - A global telecommunications network that operates the traditional telephony system.). ( ITSP Internet telephony service provider - A type of a service provider that provides communication based on Voice over Internet Protocol (VoIP).) The communication is based on Voice over Internet Protocol (VoIP). Or Internet telephony service provider A type of a service provider that provides communication via Internet. Kerio Operator requires connectivity with a telecommunications service provider ( TSP Telecommunications service provider - A type of a service provider that provides telephone and other services.).
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