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What are SIP trunks?

April 26, 2017SIP trunks

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What are SIP trunks?

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A SIP trunk is the modern day equivalent of a T1 trunk. Where in the past you would buy a T1 trunk from a Telco provider and connect it to your legacy PBX, today you can buy a SIP trunk from an ITSP (Internet Telephony Service Provider) and connect it to your VOIP / IP PBX. Sip trunks use the SIP standard. The name trunk comes from telecom world, and it means more or less group of phone lines.