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SIP Trunking for Business

Easy configurations. 24/7 connections.

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What is SIP trunking?

A Session Initiation Protocol (SIP) trunk is a service that connects your private branch exchange (PBX) system to your internet telephony service providers (ITSP). It is in charge of controlling the traffic between your private system and the public network that you’re supposed to connect to. Most VoIP systems are capable of understanding the protocol, so it has emerged as an industry standard – a common choice for VoIP service delivery.

The value of SIP trunking lies in its ability to provide business continuity in times of emergency or disaster. By being able to switch services between multiple data centers and by providing redundancy, vendors are able to deliver voice calls, fax, voicemail, conferencing, and other related services to businesses with minimal to zero interruptions.

Conventional landlines

  • Pay thousands up front for on-site hardware
  • Pay thousands more for complex implementations
  • Required contracts have early termination fees
  • Service and hardware upgrades require additional fees
  • Premium technical support requires additional fees
  • Maintenance requires trained IT technicians
  • Lengthy request process to make service changes

Cloud phones

  • No on-site hardware needed, ever
  • Fast and free implementations
  • No monthly contracts needed
  • Free upgrades to new functionality
  • Free 24/7 customer support
  • Self-manage the system from any smart device
  • Add or repurpose lines at will

Why customers choose RingCentral

Made for business

Start with unlimited calling, unlimited conferencing, toll-free numbers, and customizable caller ID. Access more functionality later, such as texting, online meetings, even faxing, without changing systems.

Mobile any time or all the time

With RingCentral, call, text, and fax from your business number on any mobile device. Incoming calls automatically go through the same business call-routing flows you set up for the office.

Simple to set up and use

Have your whole office up and running in a day or less. Respond easily to business fluctuations or customize your phone system using your online account.

Security and reliability are built in

RingCentral safeguards your communications over the entire transmission journey. Every communication travels through encrypted networks and layers of authentication, connecting directly to established carrier lines.

Top-quality support

RingCentral stands by you from day one, even doing the setup for you. Our award-winning customer support is available 24/7. Look to us for technical support, consultations, and best-practice recommendations.

Value and affordability

RingCentral gives you the most advanced communications system in the industry for one affordable price. You get a single, all-inclusive itemized bill each month. And costs remain low since there's no maintenance upgrades to worry about.

Complete cloud phone system
for small businesses
mo per user
  • Up to 10 users
  • Toll-free or local number
  • 100 toll-free minutes/mo
  • 4 people video conferencing
Complete cloud phone system
for small businesses
mo per user
  • Unlimited users
  • Toll-free or local number
  • 1,000 toll-free minutes/mo
  • 4 people video conferencing
  • Unlimited internet fax
Feature-rich cloud
mo per user
  • Unlimited users
  • Toll-free or local number
  • 2,500 toll-free minutes/mo
  • 50 people video conferencing
  • Unlimited internet fax
  • Automatic call recording
Advanced cloud phone system
with the industry’s leading
contact center. Plus an open
platform that enables easy
functionality into any system.
  • Unlimited users
  • Toll-free or local number
  • 10,000 toll-free minutes/mo
  • 75 people video conferencing
  • Unlimited internet fax
  • Automatic call recording
  • Voicemail-to-text
  • SIP Trunking for VoIP Communications
  • SIP Trunking Benefits and Advantages

When people hear the term VoIP, most of them would automatically think about hosted VoIP solutions wherein the provider takes charge of delivering the PBX (private branch exchange) functionality that enables management of calls, voicemail, fax, and other similar communications needs to users. In this setup, phones are connected to the internet and ultimately to the vendor’s servers to provide services and software to the customer. However, this is just one type of VoIP deployment.

SIP trunking allows the delivery of communications services to customers through PBX systems that are based on Session Initiation Protocol (SIP). A SIP-enabled PBX can provide call management, voicemail, fax, and other advanced telephony functions, while the SIP trunks connect the private system to the service provider. Most VoIP systems understand SIP, so it’s fairly common to come across an internet telephony provider that delivers VoIP capabilities through SIP.

The SIP trunk is in charge of controlling the traffic between your private network and the public network you’re connecting to. The way it works is this: your service provider will deliver its services over the SIP trunk that’s connected to your phone system. Your activity hits the trunk and goes to the public network, then your provider uses the protocol to relay functions similar to that of the common telephone line in real-time. In short, SIP is an industry-standard way to implement VoIP and its related services.

SIP Trunking and Your PBX Equipment

A lot of players in the communications industry have decided to enter the SIP trunking service marketplace, but you must be aware that some of them will not be able to meet your needs, specifically when you have existing PBX hardware.

If you’ve already invested in PBX equipment, you need to ensure that the phone system provider you’ll choose will guarantee that its SIP trunking capabilities will work compatibly with your phone hardware. Reputable internet telephony service providers (ITSPs) like RingCentral are committed to offering services that will check for interoperability. Similarly, these companies are expected to continuously work with their partners in the hardware manufacturing space to remove risks of incompatibility even further for the benefit of customers.

SIP trunks allow you to combine your numerous communications needs – phone calls, voicemail, fax, conferencing, and others – under a single system that connects to the public network through your communications provider. If you like the idea of unified communications (UC) for your business, SIP could be the perfect enabler in placing such a strategy in place, so don’t hesitate to explore this option.

Whether you’re with a global business switching to an internet-powered communications provider or a young company in need of a VoIP phone solution to help you get to the global stage, consider a service capable of easily configurable SIP trunking such as RingCentral.

By now, it cannot be denied that SIP trunking can make your telephone lines flexible, scalable, and more powerful. It goes above and beyond what the traditional landline can offer. In addition, your employees, your customers, and other key players in your business would not quickly recognize that you have made changes to your communications system because you are able to manage your platform on the fly.

Although the true value of SIP comes from centralizing your communications network, you can further quantify its benefits as follows:

  1. Reduces long distance communications costs. Once you decide to move your communications system to the internet, you’ll surely turn your international calling rates into local calling rates. As a result, you’ll get further savings.
  2. Eliminates the need for separate data and voice networks. Instead of having to maintain a data network and a telephone network separately, you’ll be able to create one internet-powered network capable of successfully meeting your every communications need.
  3. Saves companies from the additional cost for upgrades. As your requirements change, SIP trunks will allow you to easily scale up (or down) in a matter of minutes, whenever you want. Instead of purchasing new hardware or installing and upgrading your PBX, you only need to contact your ISTP to upgrade your subscription plan so you can enjoy more features or your internet service carrier to increase your bandwidth.

SIP Trunking for Business Continuity

Perhaps the biggest benefit of SIP trunking is its ability to switch over active services to different data centers when the need arises. When disaster strikes, you need to be able to rely on your communications system like you would on a regular day. If your system is built on the same location as your office or storefront, or if your telephone lines are connected to a public switched telephone network (PSTN) by a local telco provider, you can expect your operations to get affected.

The RingCentral platform was built with an automatic failover that minimizes downtime and provides redundancy in cases of emergency. Since the system is hosted somewhere else and not within the same location as your business, you can still make phone calls and perform various communications tasks without interruption.

Businesses looking to improve multi-channel communications while reducing costs by switching to VoIP should carefully consider deployments powered by SIP. The inherent advantages that SIP offers have helped hundreds and thousands of businesses succeed in their respective fields and industries, minus the usual financial setbacks.

Start benefitting from SIP trunking by subscribing to a RingCentral plan today. The advantages and benefits are just too good to pass up for such a relatively small investment.

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