Session Initiation Protocol (SIP) Auto Dialer | Difference Between SIP, VoIP & Twilio Auto Dialer
What is an SIP?
Session Initiation Protocol (SIP) is the protocol for initiating session calls. This protocol is designed to allow users to create, modify, and terminate multimedia sessions using the Internet Protocol. This is the application layer protocol that combines elements of the Hypertext Transfer Protocol (HTTP) and the Simple Mail Transfer Protocol (SMTP).
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HTTP