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What is a SIP Trunk?

SIP trunking is Voice over Internet Protocol (VoIP) and streaming media service based on the Session Initiation Protocol (SIP); which Internet telephony service providers (ITSPs) deliver telephone services to customers equipped with SIP-based private branch exchange (IP-PBX) and Unified Communications facilities.

With SIP trunks their is two different terminologies used to describe the number of possible calls. These different terms are “trunks” and “channels”, and often used interchangeably. That being said, from a technical configuration stand point a trunk is the connection and channel is a line.

 

General terminology applied to our service

By default all of our SIP plans come with 5 trunks (or channels); allowing you to make and receive up to 5 calls at the same time.  These calls can be to or from any number assigned to your trunks, including the SIP ID of the trunk when making VoIP to VoIP calls.

 

Technical terminology applied to our service

All of our SIP plans come with 1 trunk which has 5 channels; allowing you to have 5 active calls at once. These calls can be to or from any number assigned to your trunks, including the SIP ID of the trunk when making VoIP to VoIP calls.

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