Reduce Cost, Delay and Disruption
For many organizations, an Avaya or Mitel telephone system has provided reliable communications for years. But maintaining a legacy PBX often means supporting far more than the phone system itself. Call recording, contact center, mobility, messaging, reporting and other capabilities may depend on separate servers, appliances, software licenses, carrier services and support agreements.
A modern Unified Communications as a Service (UCaaS) platform can bring business calling, video, messaging, SMS and administration into one cloud-based environment. Features such as call recording, AI-powered transcription and summaries, analytics, customer-experience tools and contact-center capabilities can often be added within the same platform.
The potential benefits are substantial, but a successful migration requires more than selecting a UCaaS provider and choosing a cutover date. The following four steps can help an organization control costs, protect telephone service and prepare its employees for the transition.
1. Choose the Right Migration and Delivery Partner
Look for a partner with demonstrated experience in both your existing Avaya or Mitel environment and the UCaaS platform you plan to deploy. Ideally, the partner should hold relevant delivery certifications and have the ability to work directly in both environments.
This matters because a legacy PBX is rarely just a collection of telephones. It may include automated attendants, hunt groups, contact-center queues, call recording, paging, analog devices, emergency calling, fax services, door phones and integrations with other business systems. A partner who understands the existing system can document these functions and translate them into an effective cloud design.
Using one qualified partner reduces handoffs among vendors, limits duplicated discovery work and makes responsibility clearer. It can also keep delivery costs low because the same team can evaluate the existing environment, configure the new platform, coordinate testing and support the cutover.
It is especially valuable when the delivery partner manages telephone-number porting. Porting is one of the most schedule-sensitive parts of the project. A partner that coordinates carrier documentation, port submissions, rejection corrections, temporary forwarding and the final cutover can reduce delays and help protect continuity of service.
2. Review Carrier Contracts and Account Information
Before submitting a port request, determine whether existing voice services are subject to a term agreement. These services may include PRI circuits, T1s, SIP trunks, analog lines, hosted voice services and equipment leases.
Porting telephone numbers does not necessarily cancel the associated service or eliminate contractual obligations. An organization could move its numbers successfully and still receive bills or early-termination charges from the previous carrier. Review contract expiration dates, automatic-renewal provisions, cancellation-notice requirements, early-termination charges and services bundled with internet connectivity or other circuits.
Next, verify the information the losing carrier requires to release the numbers. The legal business name, service address, billing telephone number, account number, authorized person and account PIN must match the carrier's records. Even a small discrepancy can produce a port rejection.
Make sure an appropriate employee or representative is authorized on every affected account. Gather recent invoices, customer service records and letters of authorization early enough to correct mismatches before they affect the deployment schedule.
Also identify services that should remain in place after the migration. Elevator phones, fire panels, alarm lines, fax machines, entry systems and other analog devices may require a separate solution and should not be disconnected automatically when the main numbers move.
3. Migrate the Internal Support Team First
Move internal IT personnel, telecom administrators, help-desk employees and other key support users before migrating the larger organization. Treat this group as the pilot team for the new platform.
Early adoption gives the support team direct experience with the administrative portal, desktop and mobile applications, voicemail, calling, SMS, meetings and other features. It also allows them to identify common user questions, refine configurations and prepare internal training materials before supporting everyone else.
The internal team should be an active participant in the deployment—not simply the recipient of a finished system. Its knowledge of departments, business processes and existing call flows provides an important check on the delivery partner's design. Team members can confirm that requirements were understood, configurations match the approved plan and testing has been completed.
Lessons learned during the pilot can then be applied to later migration groups. This makes each departmental cutover more predictable and gives employees access to internal resources who already know how the platform works.
4. Communicate Early and Plan Each Departmental Cutover
Tell stakeholders about the migration well before their scheduled cutover. Explain why the organization is moving, what will change, what will remain familiar and what employees must do before and during the transition.
The communication plan should include executive leadership, IT, department managers, receptionists, contact-center supervisors and agents, security and facilities teams, remote employees and other high-volume or business-critical users.
Work with each department to choose an appropriate porting and migration window. A time that works well for one group may interrupt peak operations for another. Avoid public meetings, enrollment periods, billing cycles, major deadlines, seasonal call spikes and other critical events.
Commit the necessary people and support resources to every cutover. Depending on the organization, that may include the delivery partner, internal IT, the department manager, trainers, onsite technicians and carrier-porting personnel. Each migration group should have:
- A confirmed date and change window
- Assigned responsibilities and escalation contacts
- A list of users, numbers, devices and call flows
- A testing and acceptance checklist
- User instructions and training resources
- Live support during and immediately after the port
- A contingency plan for critical calling functions
Support should extend beyond the moment the numbers port. Inbound calling, outbound caller ID, emergency calling, routing, voicemail, applications and devices should all be tested while the responsible resources are still available.
UCaaS Migration Is an Operational Project, Not Just a Phone Replacement
Moving from a legacy PBX to UCaaS can reduce infrastructure and consolidate communications capabilities that once required multiple systems. It can also provide a practical path to modern features such as call recording, AI transcription and summaries, SMS, analytics, mobility and customer-experience applications.
However, the technology alone does not guarantee a successful outcome. The right partner, accurate carrier information, an experienced internal pilot group and well-planned departmental cutovers are what turn a platform purchase into a controlled migration.
High Country Workplace Technologies helps businesses, government agencies and school districts evaluate and migrate from legacy Avaya and Mitel systems to modern unified communications solutions. Our team can assist with discovery, system design, number porting, deployment, testing, training and ongoing support.
Planning a move from Avaya or Mitel to UCaaS? Contact High Country Workplace Technologies to discuss your current environment and migration requirements.