Definition
Session Initiation Protocol (SIP) is a signaling protocol used to set up, manage, and tear down voice and video calls over IP networks. It is a backbone standard for VoIP telephony.
Why it matters
SIP connectivity enables flexible call routing and number provisioning for voice AI deployments at scale.
Put Voice AI to Work for Your Agency
Understanding the terminology is the first step. Launching a branded voice AI practice is the next. Fusion Calling helps agencies go live in about 7 days, with multi-provider support, done-with-you onboarding, and full brand ownership.
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