Welcome to ThreePBX

Unified VoIP Phone System for Law Firms & Legal Professionals

Stop worrying about phone issues — get back to being an attorney.  ThreePBX VoIP solution ensures the highest quality of communication delivery.


Integration With Cloud-Based Applications

Benefits of Using a VoIP Phone System in a Law Office!

  • Flexible VoIP System:

    A ThreePBX VoIP phone system offers a great level of flexibility. You can operate your business from wherever you like because you are not constrained by physical equipment and phone connections in one particular area.

  • Cost Effective VoIP Solution

    VOIP drastically reduce the cost and increase the efficiency of your phone system. Fully cloud-based VoIP eliminates the requirement for on-site server installation and upkeep.

  • 24/7 Technical Support

    ThreePBX offers 365/24/7 technical support to his clients. Customer service is integral to our mission, which is why we don’t compromise in providing you with support that you can fully trust and rely on.

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All the Features You Need to Run
Your Law Firm

Auto Attendant

Customized menu option to send clients to the correct department or agent.​

Advanced Call Queue Handling

Put callers "on hold" until they can connect to an available staff member.

Advanced Voicemail

Access voicemail messages from your desk and mobile phones, email, desktop app and online account

Ring/Hunt Groups

Preconfigured departments ring groups for billing and more

Fax Machine

Receive all your faxes to your email, fax machine, or portal system

Management Dashboard

User Friendly dashboard to monitor your staff and incoming and outgoing calls from any location 

How it works

Easy step

setting up VoIP is as easier as following these following steps

Book time with a VoIP advisor!​

Schedule a quick meeting with an Advisor. Learn more about our surprising flexibility and affordability.

Receive a free demo & review quote

We will go through a full feature demo and explain the necessary features for your business, as well as answer any questions you may have. 

System setup and onboarding

Once agreements are signed,  We will set up your phones, configure your system and train your team with all that they need know. 

Dedicated long term support

We are here to support you and your team 24/7. Whatever your query or problem, you are one click away from a solution.

Complete Agility For Legal Personnel

Work from anywhere. Relieve your attorneys, paralegals, and key personnel from their office confines. With ThreePBX’s mobile-optimized capabilities, such as The ThreePBX App, audio conferencing, voicemail-to-email transcription, group chat, hot desking, and file sharing, your employees can work from anywhere.


Develop Stronger Attorney-Client Ties

ThreePBX VoIP phone solution has powerful features that can make it easier for attorneys to communicate easily & efficiently with clients.

ThreePBX VoIP solution ensures the highest quality of communication delivery. Communication with clarity and precision is owed to clients, and timely delivery of accurate information is a critical element of law firm efficiency.

Guarantee Uptime in Unanticipated Outages

Our cloud-based phone systems for law firms come with a 99.99 percent uptime guarantee backed by a Service Level Agreement (SLA).Our Highly Available (HA) data centers ensure that clients may continue to access essential services in the event of a power outage.


Client Data Confidential and Encrypted

Client Attorney Confidentiality is essential to the success of any law firm. ThreePBX cloud-based communication solutions for law firms give peace of mind to not only the company but also stimulate client confidence when they know their information is safe.

ThreePBX Office for Law Firms has Three Remedies
to Accommodate Your Work Style.


1. Office Edition

Use desktop VOIP IP phones to
stay connected.


2. Mobile App Edition

Stay mobile in and outside
of your agency.


3. Desktop Edition

Manage high call volumes
easily & efficiently.

VoIP Phones + ThreePBX VoIP Service

With ThreePBX, Your Have Options

Pick whichever options works best for you!

Bring Your Own

1. Save money when you bring your own device.

2. Compatible with most VoIP phones.

3. One-time provisioning fee per device. 


1. One-time purchase.

2. Lower total cost of ownership over a 3-year period


1. Low monthly fee

2. No up-front costs.

3. We’ll fix it for free if there are ever any issues.


1. This requires a 24-36 month contract to get quality devices


We are passionate about solving your business challenges with highly optimized communication solutions backed with the best technology to bring the best outcomes for your business. We believe that the power of company success lies in the power of communication, and we’re here to help you excel your vision.
  • Trust

    From set-up to support, our highly trained team of professionals are here to simplify the process, and help you gain the maximum benefits from our seamlessly efficient communication system.

  • Transparency

    We believe that our quality service speaks for itself, which is why we don’t bind our customers into long term contracts. We work with full transparency to deliver you with a range of tailored pricing packages and monthly payment schemes with no hidden fees.


ThreePBX Office Pricing

Pricing Table
Monthly plan with no commitment
1-4 5-19 20-99 100+


$30.95 /user/monthly
  • Business phone or toll-free numbers
  • Unlimited calls within the US/PR/Canada
  • Voicemail-to-text
  • Team messaging
  • 24/7 Technical Support
  • 1500 Toll Free Minutes
  • SMS/MMS Business Texting


$35.95 /user/monthly
  • Business phone numbers in over 100 countries
  • Unlimited audio conference calls
  • Video meetings
  • Quality-of-service reports
  • 24/7 Technical Support
  • 3000 Toll Free Minutes
  • SMS/MMS Business Texting


$45.95 /user/monthly
  • Single Sign-on
  • Multi-site admin and management
  • Up to 8-digit extensions with site codes
  • Hot desking
  • Advanced call handling including whisper, barge, and more
  • Video meetings
  • Real-time analytics
  • Popular CRM integrations with Salesforce, Zendesk, and more
  • 24/7 Technical Support
  • 12,500 Toll Free Minutes
  • SMS/MMS Business Texting
Compare all ThreePBX VoIP Plan
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Frequently Asked Questions

ThreePBX phone service is designed to meet your business needs, so yes, it is highly likely for you to keep your existing phone number. As long as the active voice/fax number is portable, which it usually is via federal guidelines that we can facilitate the transition. In fact, we can even confirm this for you as part of our discovery call.

We can use your existing VoIP phones if you are already on a Cloud Based VoIP system. We also have options to make calls using our application through computer or mobile options if that is a business preference for you.

No, you will not experience any delay as we work. Your phone lines will continue to run during the transition.

No upgrade is necessary as long as you have a broadband connection (not DSL). You can make/receive 10 calls simultaneously while only using 1MB bandwidth as our codec uses 100 KBps per phone call. Our technology is designed to make your life easier.

We like to ensure minimal disruption to business operations if and when an issue arises. No, you will not lose phone service if your internet connection goes down. The hosting site where your phone server is located will continue to function, however your phones will not ring due to the internet connection being down.

No, you will not be bound to any long-term commitments with Three PBX. We are confident about the service and technology we provide our customers, which is why we are also confident that we will earn your trust over time.


Our standard contract works on a monthly payment basis. However, we also provide more tailored packages that accommodates your business needs and budgets. If you do require a long-term contract, this will come with an added benefit of reduced rates.

Yes, you can use your cell for VoIP without having to disclose your personal cell number. Our service is very easy to use on your mobile device with our ThreePBX mobile app, which provides your phone with a business line. You will also be able to keep your employee’s phone numbers hidden from your customers.

At ThreePBX, we look to create a complete business phone system experience for you and your employees. The transition from another provider can be complicated, yes, however we overlook the set-up of the system from start to finish as well as any changes your business requires.

We have VoIP integration with Salesforce, Zoho CRM, HubSpot, and more.

Switching over to VoIP is quite a common and simple process. In fact, having an internet facility enables us to provide you with more features that can optimise your business function. The first step is to sign up with ThreePBX, which will permit us to start the phone number porting process. On completion of this process, you will then be able to cancel the existing plan you have.

14 Day Trial

What’s the difference?

Traditional phone numbers versus Virtual phone numbers

Even though virtual phone numbers and regular phone numbers work the same, there are key differences between the two. First, area codes don’t really matter when it comes to VoIP phone systems. Unlike regular phone numbers, virtual ones work independently of location. This means you’ll be able to choose a phone number with any area code you choose.

Second, landline phone numbers are linked to a specific device, usually a landline phone you can have at home or in your office. Virtual phone numbers can be linked to many devices, which allows users to make voice calls not only from a landline but also from a smartphone or a computer. All you need to make the call is the virtual phone number! This provides businesses with greater flexibility and freedom of use, which is key in today’s world.

Virtual phone numbers will allow you to measure your marketing efforts by tracking the number of calls you receive from prospects that are coming from all your social media platforms. This way, you can adjust your efforts however necessary to make sure your prospects can contact you whenever they need it.

These two key differences make it possible to understand exactly why VoIP phone systems have become so popular among businesses. They are convenient, flexible, easy to use and they contribute to successful communication not only with clients but also with partners and team members. 

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