What Is Sip Trunking?
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SIP trunking (Session Initiation Protocol) is a technology that uses Voice over Internet Protocol (VoIP) to facilitate communications between an organization and the public switched telephone network (PSTN). A SIP trunk is a virtual phone line that connects a business’s private branch exchange (PBX) to the internet, allowing businesses to make and receive calls over the internet. SIP trunking eliminates the need for traditional landline phone service and can reduce communication costs. Businesses can use SIP trunking to connect multiple sites, integrate voice and data systems, and take advantage of advanced features such as unified messaging, call routing, and Voice over IP (VoIP) integration.