Everything You Need to Know About SIP Trunking in VoIP  

Everything You Need to Know About SIP Trunking in VoIP  

Everything You Need to Know About SIP Trunking in VoIP  

You’ve been tasked with saving money for your company by using SIP Trunking in VoIP. One of the areas you’re looking to cut costs, but not service, is the company’s phone bill. Several of your colleagues have mentioned that SIP Trunking is the way to go. But what is SIP Trunking, and what will it do for your company? 


First, a basic understanding of the traditional phone system is necessary. The private phone system currently installed in your business is called a PBX. The PBX is directly connected to the public telephone system (known as the PSTN). When you initiate a call, your call travels through the phone lines used by the PSTN. You are then charged a per-minute fee for the call.

The advantage of using a PBX is that you can make calls without dialing into the PSTN each time. The disadvantage is that you have to pay for and maintain the PBX, and you're still charged per-minute fees for outgoing calls.

Using a SIP Trunking service modifies this process. A SIP Trunking service provider allows a company to get PSTN connectivity via the Internet. Instead of the traditional physical wires running from a provider to a business, SIP trunking now connects to the PSTN through the Internet. When a call is made, a SIP trunking soft switch will route the call to its destination. However, the call will not go through the telephone lines that make up the PSTN. Instead, it will travel through the Internet.

SIP Trunking combines connections for data and voice into a single line. A company’s data network now carries voice traffic. Features that typically come with this service include local and long-distance service, 911 services, directory listing, and caller ID. These features will work in conjunction with the company’s existing PBX.

What is SIP Trunking?

SIP trunking is a service that allows you to make and receive phone calls over the internet. Businesses often use it to save money on phone calls since it can be cheaper than traditional landline service.

How Does SIP Trunking Work?

SIP trunking works by using the internet to connect your business's PBX (private branch exchange) phone system to the public telephone network. This allows you to make and receive calls without using a traditional landline.

Why Use SIP Trunking?

There are a few reasons why you might want to use SIP trunking for your business:

  • To save money: SIP trunking can be cheaper than traditional landline service since you're only paying for the service and not the infrastructure required to support it.
  • To improve call quality: Since SIP trunking uses the internet to connect your calls, it can offer better call quality than traditional landline service.
  • To be more flexible: SIP trunking can be easily scaled up or down to meet your business's changing needs.

How to Choose a SIP Trunking Provider?

If you're interested in using SIP trunking for your business, there are a few things you'll need to keep in mind when choosing a provider:

  • Make sure the provider offers good call quality and reliability.
  • Ask about the provider's customer service and support options.
  • Find out if the provider offers a money-back satisfaction guarantee.
  • Get a sense of the provider's reputation by reading online reviews.

SIP trunking can be a great way to save money on your business's phone calls. Just make sure to do your research and choose a reputable provider.

SIP Trunking Features and Benefits

OK, you say. I get how it works, but so what? What will it do for me to cut costs without sacrificing features? These are fair questions. Some of the benefits companies enjoy by going with a SIP Trunking service are:

  • A reduction in monthly expenses, as only one connection, is needed for voice and data.
  • Outsourcing PSTN connectivity to a third party, reducing long-distance charges.
  • The use of a hosted VoIP service while maintaining the investment in their PBX.
  • Establishing local numbers in cities across the country instead of using an 800 number.
  • Doing away with PRI (primary rate interface) and BRI (basic rate interface) connections reduces costs.
  • Eliminating the need to purchase equipment that does the work of the SIP Trunking service.

There are many other benefits of sip trunking for businesses, including cutting costs, increasing flexibility, and improving reliability.

Cost savings is one of the most popular reasons businesses switch to sip trunking. SIP trunking can help companies to save on their monthly phone bills by eliminating the need for expensive long-distance calls. In addition, sip trunking can also provide significant savings on equipment and maintenance costs.

Another significant benefit of sip trunking is increased flexibility. With sip trunking, businesses can easily add or remove phone lines. This can be a tremendous advantage for seasonal or fluctuating call volume companies. In addition, sip trunking also allows businesses to turn their phone system up or down as needed quickly.

Improved reliability is another critical benefit of SIP trunking. SIP trunking provides businesses with a more reliable connection than traditional phone lines. In addition, sip trunking is less likely to be affected by power outages and other disruptions.

Sip trunking is an excellent option for businesses looking to cut costs, increase flexibility, and improve reliability. If you're considering switching to sip trunking, check out all the features and benefits to see if it's right for you.

Bottom Line

SIP Trunking allows a company to use its existing investment in its phone system and interface it with the Internet. The result is that the company enjoys VoIP services and a state-of-the-art communications process while immediately seeing a drop in expenses from the costs associated with the traditional phone provider and service. With a modest outlay, a company can see a beneficial return on investment in six months or less. If you’re looking to cut costs on your company’s phone bill while making the phone system more efficient, SIP trunking is a prudent way to go. 

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