SIP calling

From marketing mistakes to excessive outsourcing and unnecessary meetings, businesses waste tons of money every year.

If you’re looking for ways to cut costs around your office without sacrificing the quality of service you provide, simple swaps can end up saving you a lot of money.

One easy way to reduce unnecessary spending and also improve your office’s efficiency is to switch from a traditional office phone system to SIP calling.

Keep reading to learn more about SIP and how it can change your business for the better!

What is SIP Calling?

SIP phone stands for Session Initiation Protocol, and its the process of transmitting voice calls over a SIP trunk and works with VoIP (Voice Over Internet Protocol) phone systems. 

A traditional phone system consists of two parts. First is the PBX, which is responsible for call management features like voicemail.

Second is the PRI lines, which connect calls to the PSTN (Public Switched Telephone Network). The PSTN is responsible for routing calls to their destination.

With SIP, there’s no need for a regular, physical connection to a phone company and no need for multiple phone lines.

Instead, a SIP “trunk” is virtually installed over your current internet connection. This allows you to bypass PRI lines and connect to the PSTN via the internet.

Benefits of SIP Calling

There are several reasons why SIP phone systems are the way of the future. This new way of SIP calling comes with several benefits for your business, including those listed below.


In addition to basic call setup, a SIP phone system performs several other VoIP functions, such as:

  • Identifying user location
  • Determining user availability
  • Negotiating media capabilities
  • Session setup and management (transferring/terminating calls, adding 3-way conferences, etc.)

A SIP trunk can also be used for other types of communication, including:

  • Instant messages
  • Multimedia conferences
  • User presence information
  • Enhanced 911 emergency calls

Combining all these features helps cut down on your need for extra devices and makes it easier for employees and customers to stay in touch.


Switching to SIP calling can result in massive savings for your businesses — up to 40 percent on local calls and up to 90 percent on international calls!

There are a few different ways that these savings are accomplished:

  • Elimination of hardware purchases, installation, and maintenance costs
  • Elimination of multiple subscription fees
  • Elimination of multiple networks
  • Turning all calls into local calls (thus, providing huge savings on international calls)

You’ll also get an almost instant return on investment with a SIP phone system. This is because of the low setup costs and your ability to eliminate a lot of the costs associated with a traditional phone system.

We offer free SIP trunk for testing, no credit card information necessary. To start your free trial, click the get started button below or visit our Free SIP Trunk for Testing blog to learn more!


It can get expensive trying to support a growing business. Adding more telephone lines, waiting for those lines to be installed, and making room for extra equipment really eats into your bottom line.

It’s especially frustrating to buy additional phone lines because they’re usually sold in groups of 23. This means you often have to get more than (and spend more than) what you actually need.

With SIP calling, you buy one channel at a time, and only when you need it. You don’t have to make guesses about future needs, and you don’t have any extra equipment lying around gathering dust.

It’s also easy to access new carrier services like call recording and voice analytics and upgrade your system as they’re introduced.


You might think that it will be too difficult to figure out SIP calling and implement it in your office. In reality, though, it’s quite easy to install the system. All maintenance is done through a simple online control panel.

If you’re worried about training your staff to use a SIP phone system, keep in mind that SIP calling consolidates all your communication needs into one device.

Everyone will only need to be trained on one system instead of several, simplifying the process and ensuring that everyone is on the same page.

Easier to Maintain

There’s also less maintenance with a SIP phone system. There are several tools available that can easily monitor and resolve issues within minutes.

SIP trunking providers can also easily reroute services, either to a redundant data line or to mobile phones, so that your business doesn’t suffer.

Better Sound Quality

Some business owners worry that switching to SIP calling will decrease the sound quality of their calls. This definitely isn’t the case, though.

Many systems utilize wideband audio, or HD voice, to extend frequency range and double the sample rate of telephone audio. This means that it’s easier to distinguish between syllables and understand the person on the other line.

Never Miss a Call

When you outfit your office with a SIP phone system, you make yourself more available to customers than ever before.

With SIP calling, calls can automatically be rerouted from your phone to another extension, or to an employee’s mobile phone.

It’s easy to take your business on the road with you, and you’ll never have to worry about losing a sale because you weren’t reachable!

Who Should Use SIP Calling?

Small businesses and startups love SIP trunking because of the savings and flexibility the systems present. But, they’re not the only ones who can benefit from a SIP phone system.

Some large businesses are hesitant to jump on the VoIP and SIP bandwagon. Maybe they’re worried about implementing a new system, or they just don’t see how they can benefit.

No business is ever too large to stop caring about wasted resources.

There are several other reasons for large businesses to consider switching to a SIP phone system, including the following:

  • Time management and data-gathering tools
  • Free and simple internal calling
  • Better contact with international clients
  • Ability to work anywhere there’s an internet connection
  • Unified communications that let you easily combine technologies and platforms

Clearly, large businesses have much more to gain than to lose by changing up their phone systems.

Get a SIP Phone System Today

According to The VoIp Report, it’s anticipated that 42 percent of firms will be sending 100 percent of their traffic over SIP trunks by 2018. And, 50 percent of U.S. business exchange lines will be SIP-based within the next year.

Clearly, SIP is here to stay. If you’re ready to take the plunge and try a SIP phone system in your office, we’re here to help at SIP.US!

Fill out our simple online form today. You’ll have a free SIP trunk account in less than 60 seconds!

Free SIP Trunk in 60 Seconds

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