The SIP Blog

This blog is dedicated to SIP trunking and related services. Learn more about SIP phone service, SIP providers and VoIP SIP trunks.

What is SIP and How Does it Work?

February 11, 2014

Standing for Session Initiation Protocol, SIP is the most popular IP telephony protocol. SIP is responsible for establishing a call, controlling the transfer of the…

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What is SIP Termination?

February 4, 2014

The Session Initiation Protocol (SIP) is a protocol used in signaling communications. This article will discuss the aspects of SIP termination. However, before that can…

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A Short History of SIP Trunking

January 29, 2014

Session Initiation Protocol or SIP Trunking is a valuable tool that allows businesses to connect their phone systems to the Internet, and use the speed…

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Cloud SIP Trunking as a Replacement for your PRI (Primary Rate Interface) Service

January 28, 2014

Many businesses are making the switch from PRI (Primary Rate Interface) to SIP trunks. There are many reasons to make the switch, but large businesses…

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Evaluating SIP Providers and SIP Trunking Services

January 17, 2014

Key Areas To Consider During SIP Provider Selection. When evaluating a SIP Trunk provider, you want to make sure that they have a robust feature-set.…

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How to Setup a SIP Trunk in the Cloud

January 16, 2014

  Configuring an Affordable SIP Trunk Setting up a SIP Trunk is a straightforward process.  When configuring your PBX or device, there are two types…

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The Growth of SIP Telephony and the Migration to SIP

January 12, 2014

SIP Telephony Growth Threatens Toll Network Research from several leading analyst firms confirms that the migration to SIP telephony for business is well underway and…

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SIP Trunk Cost US

Are SIP Calls Cheaper Than Other Phone Calls?

January 8, 2014

The Economics of SIP Calling There are many reasons why businesses choose SIP trunking as an alternative to traditional telephone lines. Although SIP offers many…

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Using VoIP with SIP and Asterisk

November 29, 2013

Asterisk, the Open Source PBX Alternative for SIP Telephony Open-source software provides an alternative to traditional hardware-based PBX or IP-PBX solutions.  The most widely used…

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