PBX Maintenance, Support and Migration

Proven Ongoing Support for Your PBX Phone Systems

Receive world-class PBX maintenance and support for a fraction of the cost compared to any other provider. Continuant is dedicated to understanding your unique situation and getting you where you need to be.

What Sets Our PBX Services Apart

Too often, original equipment manufacturers (OEMs) attempt to get customers to upgrade by sunsetting entire systems and cutting off ongoing support. Rather than deal with constant costly upgrades, get the most out of your legacy systems with Continuant. Best-fit solutions for your budget and functionality are achieved through Continuant’s phased, hybrid approach to PBX maintenance, support and migration.

Global Multi-vendor PBX Support

No matter the mix of systems in your calling environment, we can provide total support.

Avaya Maintenance & Support

As a Third Party Maintenance provider, we have the experience and expertise to keep your Avaya PBX systems running post-EoMS (End of Manufacturer Support) or during your migration to the cloud.

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Mitel Maintenance & Support

Your Mitel PBX still plays a vital role in our communication infrastructure. Our comprehensive support services ensure your Mitel systems remain reliable and efficient. Whether you use Mitel MiVoice, MiCloud, or any other Mitel product.

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Cisco Maintenance & Support

If you have a legacy Cisco environment, you likely have more options than you think. You can keep your Cisco PBX voice systems operating until you’re ready for a large-scale collaboration solution.

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Nortel Maintenance & Support

In the event of an outage or incident, you can be confident that you’ll get the help you need, 24 hours a day, 7 days a week, with no pressure to upgrade to the latest solution. Continuant can maintain and extend the life of your Nortel PBX systems.

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NEC Siemens/Unify PBX in 2024 (Blog)

What Our PBX Maintenance & Support Services Can Do For You

You deserve to get the most out of your PBX investments. When you work with Continuant, you save money by eliminating frustrations like:

Working with costly OEMs for maintenance
Being forced into planned obsolescence
Multiple contracts with multiple vendors

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Maximize the Value of Your PBX Investment With Continuant's Maintenance Advantage Plan (MAP)

Your company deserves a better option to maintain and support your PBX systems, so we created one. Designed specifically for large organizations that want to extend the life of their PBX phone system when manufacturer support ends, our world-class Maintenance Advantage Plan (MAP) allows you to continue to rely on your PBX phone system for as long as you need.

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Industry-Leading SLA

In case of a system outage, we’ll restore your system in record time.

No Pressure to Upgrade — Ever

Our focus is on your needs and your timeline. We won’t pressure you to upgrade.

24/7/365 U.S. Support

Our US-based support teams are on standby, 24 hours a day, 365 days per year.

Tier 3 Engineer Access

24/7 access to incident management and TAC from our Tier 3 engineers.

No Required Software Support

No need to pay for additional support for systems that still work.

Guaranteed Parts Availability

We guarantee that we’ll have the right parts you’ll need, even for older systems.

Dedicated Support Team

One single point of contact for your dedicated support team.

40% Average Cost Savings

On average, we save our customers 40% in maintenance and support costs.

collage of service including a phone with Microsoft teams on it. A PBX phone. A laptop with a zoom call on the screen and a headset hang off the side of the laptop screen. Above the collage is Microsoft Teams, Zoom and Webex logos.

Continuant Connect

Continuant Connect gives you the power of choice

Easily migrate from your legacy voice system to the cloud with Continuant Connect.

Choose your timeline

Shift from copper landlines to cloud-based telephony on your schedule. Our hybrid calling solution bridges the gap, so you can decommission hardware in stages with no disruption to business operations.

Choose your carrier

Keep your telephone provider, pick a new one, or choose us as your carrier—it’s up to you. Locked into a contract? With Continuant Connect, you can still consolidate your communications and use our internet-powered solution to enjoy cheaper calling rates without violating your contract.

Choose your UCaaS products

The power to pick your technology is in your hands. Choose from Microsoft Teams, Zoom, Cisco, and other UC apps to serve as the hub of your internal and external communications.

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Need better PBX support or help with a migration?

Peace of mind is just one of the benefits you’ll experience with our guided, custom-tailored PBX maintenance and migration. We're here to help you every step of the way.

PBX Maintenance & Support FAQs

What is a PBX?

PBX stands for Private Branch Exchange System, which is a private telephone network used within a company or organization. The users of the PBX phone system can communicate internally (within their company) and externally (with the outside world), using different communication channels like Voice over IP, ISDN or analog. A PBX or PABX also allows you to have more phones than physical phone lines (PTSN) and allows free calls between users. Additionally, it provides features like transfer calls, voicemail, call recording, interactive voice menus (IVRs) and call queues. Want to learn more? We wrote a blog for you!

What is a Cloud PBX?

Through an internet connection, a cloud PBX or virtual PBX offers a safe and dependable office phone system. It maintains low expenses while giving organizations flexibility and scalability. Learn more about Continuant's Cloud PBX Solutions.

What is VoIP or IP PBX?

A PBX system that can handle calls over an IP network is known as a VOIP PBX or IP. It is capable of making outbound connections to both conventional and SIP trunks as well as IP extensions. The majority of VOIP services offer normal phone numbers to enable calls from landlines and mobile devices. Usually, the person calling these numbers can't identify if the call is to a standard PSTN service or a VOIP provider.

What is VoIP?

VOIP, or Voice over Internet Protocol, is a technology that enables voice communication over the internet rather than traditional telephone lines. With VOIP, analog voice signals are converted into digital data packets, allowing users to make calls using their internet connection. This technology offers cost savings, advanced features, scalability, and integration with other business applications, making it a popular choice for businesses and individuals seeking modern communication solutions.

What is a PSTN service?

The circuit-switched telecommunications network that has been in use since the 1860s is known as PSTN, or Public Switched Telephone Network. You may also be familiar with Plain Old Telephone Service (POTS), which is an alternative to PSTN and uses copper subscriber lines or landlines. POTs lines are a "last mile" delivery mechanism and only a minor component of the total PSTN system, whereas PSTN refers to the infrastructure and services for the world's circuit switch telephony networks. Ready to make the move from POTs connection to the cloud? We can help!

What is a PRI?

The end-to-end, digital telecommunications link known as a PRI, or Primary Rate Interface, enables 23 simultaneous speech, data, or video transfers between the network and the user. The PRI line, or circuit, is a piece of tangible hardware. PRI won't last forever though. Are you ready to move your PRI connections to that cloud? We have you covered.

What is SIP Trunking?

SIP trunking is a voice over Internet Protocol (VoIP) technology and streaming media service based on the Session Initiation Protocol (SIP) by which Internet telephony service providers (ITSPs) deliver telephone services and unified communications to customers equipped with SIP-based private branch exchange (IP-PBX) and unified communications facilities. Most unified communications applications provide voice, video, and other streaming media applications such as desktop sharing, web conferencing, and shared whiteboard.

Can we move to the Cloud and still use our existing PBX equipment?

Absolutely! We design solutions that allow you to get the most mileage out of your on-prem PBX hardware while experiencing the benefits of a hybrid environment. Check it out!

What's the difference between Connect Hybrid Calling and MAP?

Continuant's Connect Hybrid Calling (CHC) is an enterprise-grade voice solution designed to fit your organization's voice-to-cloud timeline with Microsoft Teams Phone.

Continuant’s Maintenance Advantage Plan (MAP) allows you to extend the life of your PBXs — with industry-leading third-party services — even when the OEM can no longer provide support.

What is Legacy Connect?

Legacy Connect is an enterprise-grade voice solution designed to comprehensively upgrade your PSTN service via SIP trunks. Legacy Connect recognizes the unique challenges faced by enterprise IT leaders when it comes to moving their robust telephony infrastructure from land-based connections to cloud-based, virtual connectivity.