SIP telephony providers, or “SIP telefonie anbieter” in German, are companies or organizations that offer services that enable businesses to make and receive phone calls using the Session Initiation Protocol (SIP). SIP is a signaling protocol that is used to establish, maintain, and terminate real-time voice, video, and data communication sessions over IP networks.
SIP telephony has a number of advantages over traditional PSTN (Public Switched Telephone Network) phone service, including lower costs, increased flexibility, and improved call quality. SIP trunking, the service offered by SIP telefonie anbieter, is a cost-effective way for businesses to connect their PBX systems to the public telephone network. SIP trunking can help businesses save money on their phone bills and improve the quality of their phone service.