State and local governments have reached a tipping point in communications modernization. Aging PBX systems, hybrid workforce demands and increasing expectations for digital services are accelerating the shift to Unified Communications as a Service (UCaaS).
- 94% of public-sector leaders say cloud adoption is important to their agency’s future
- Only 2% of agencies have not begun cloud migration
- Resiliency, collaboration, and continuity are the primary drivers
As a result, UCaaS platforms such as Microsoft Teams and Zoom, as well as cloud contact center solutions, are becoming the standard for government communications.
Cloud Adoption in Government Has Reached Critical Mass
Recent industry research confirms that cloud adoption is now nearly universal across state and local government:
- 94% of leaders view cloud adoption as important to their agency’s future
- Just 2% of agencies have not yet begun their cloud journey
This signals a fundamental shift: cloud is no longer a future initiative and is now baseline infrastructure.
Adoption Is Accelerating, Not Slowing
- Local government cloud adoption increased by ~35% year-over-year in 2025
This acceleration is tied to:
- Digital service modernization
- Infrastructure replacement cycles
- Expansion of cloud-native applications
The Drivers: Resiliency and Operations Over Cost
Top Drivers of Cloud Adoption
- 64% – Improved interdepartmental collaboration
- 64% – Disaster resilience and continuity of operations
- 59% – Improved constituent digital experience
- 9% – Cost savings as the primary driver¹

Legacy PBX Systems Are Reaching End of Life
According to Information Services Group:
- Agencies are entering widespread cloud migration to replace aging systems²
- Legacy PBX platforms struggle to support:
- Hybrid work
- Workforce shortages
- Modern collaboration
This represents a full transition to cloud-based communications, not incremental upgrades.
UCaaS Is Becoming the Standard for Enterprise Voice
According to Gartner:
- 90% of organizations will rely on cloud telephony by 2028
- On-premises telephony spending will decline by ~50%
Public sector adoption is accelerating due to:
- Resiliency requirements
- Security and compliance needs
- Workforce mobility
Microsoft Teams and Zoom Are Leading UCaaS Adoption
Microsoft Teams
- 320M+ active users globally
- 1M+ organizations using the platform
- Strong presence in government and education
Zoom Communications
- Rapid growth of Zoom Phone and contact center solutions
- Increasing adoption across public-sector environments
Market Leadership
Gartner consistently ranks Microsoft, Zoom, Cisco, and RingCentral as UCaaS Leaders
What This Means for State and Local Government
- UCaaS is now the default modernization path.
- Resiliency is the primary driver.
- Hybrid work requires cloud communications.
- Constituent expectations demand digital-first engagement.
Start Your UCaaS Transformation
Cerium Networks combines decades of unified communications expertise with modern cloud-based UCaaS solutions designed specifically for state and local government environments. We help organizations streamline communications, enable seamless collaboration, and empower employees with integrated voice, messaging, and meeting capabilities in a single platform. By aligning technology, process, and governance, we transform legacy telephony environments into flexible, scalable communications ecosystems that support a more connected, service-first government.
Frequently Asked Questions (FAQ)
UCaaS (Unified Communications as a Service) is a cloud-based delivery model for voice, video, messaging, and collaboration tools. In government, it replaces legacy PBX systems with platforms like Microsoft Teams and Zoom.
The primary drivers are:
- Business continuity and disaster recovery
- Hybrid workforce enablement
- Improved collaboration across departments
- Enhanced constituent communication
Cost savings is a secondary consideration, cited as the top driver by only 9% of agencies.
While not universally mandated, adoption is effectively unavoidable:
- 94% of agencies already view it as critical
- Only 2% have not started
This indicates a near-universal transition away from on-premises systems.
Legacy PBX platforms are being:
- Phased out
- Replaced with UCaaS solutions
- Decommissioned as part of modernization initiatives
They lack the flexibility and resilience required for modern government operations.
Leading platforms include:
- Microsoft Teams (with Teams Phone)
- Zoom Communications (Zoom Phone)
- Cisco Webex
- RingCentral
UCaaS enables:
- Geographic redundancy
- Remote access to communication tools
- Rapid failover during outages
This makes it a foundational component of COOP and disaster recovery strategies.
