What Is Sip Calling?
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SIP calling is a method of making and receiving telephone calls over a VoIP network, allowing users to make and receive calls without a traditional PSTN-based phone line. It works by using the Session Initiation Protocol (SIP) to establish and manage the connection between two or more parties. Users can make and receive calls from an IP-based phone, a computer with a SIP-enabled softphone, or a mobile device with a SIP app. SIP calling can provide a number of features and benefits, including lower costs, increased scalability, and improved flexibility.