Unified Communications
GCA delivers end-to-end Unified Communications (UC) solutions that integrate voice, video, messaging, and collaboration into a single, secure platform. From initial design and deployment to sustainment and modernization, we ensure reliable, high-quality communications for government, defense, and enterprise customers. Our UC architectures are built for scalability, security, and cross-domain collaboration, enabling teams to connect seamlessly regardless of location or mission environment.
Core Capabilities
Full-Stack UC Design, Deployment & Modernization
We engineer and implement enterprise-grade UC solutions, integrating voice, video, and messaging into a unified platform. Our designs leverage leading technologies to deliver secure, high-performance communications across classified and unclassified environments, with a focus on flexibility and lifecycle sustainability.
Secure Cross-Domain Integration
Our solutions enable controlled interoperability between separate network enclaves, allowing secure collaboration across NIPR, SIPR, and other mission networks. We implement strict access controls, encryption, and boundary protection to maintain compliance with DoD and agency-specific requirements.
VoIP & IP Telephony Solutions
We deploy and sustain VoIP systems such as Cisco Unified Communications Manager (CUCM), Microsoft Teams Voice, and SIP-based platforms. Our engineers handle system configuration, call routing, security hardening, and ongoing performance optimization.
Collaboration Platform Enablement
We integrate mission-approved collaboration tools, including Microsoft Teams, Zoom, and Webex, into secure UC environments. Our approach ensures seamless user adoption, high availability, and compliance with agency IT and security policies.
Unified Messaging & Presence
We configure and manage real-time presence indicators and centralized messaging platforms, enabling users to communicate effectively across devices and locations.
Mobile UC Solutions
We provide secure mobility integration for voice and video communications, extending UC capabilities to mobile devices and remote work environments while maintaining compliance with federal security standards.
Infrastructure & Integration
IP-Based Telephony & Call Routing
Our engineers design and configure telephony infrastructures that leverage enterprise-grade switching and routing, ensuring low latency, high availability, and clear voice quality.
Session Border Controller (SBC) Deployment
We install and configure SBCs to manage SIP trunking, control call flows, and protect VoIP networks from unauthorized access or service disruptions.
Directory & Identity Integration
We integrate UC platforms with enterprise directory services such as Active Directory, enabling single sign-on (SSO) and role-based access control for streamlined administration.
Quality of Service (QoS) & Network Optimization
We implement QoS policies and network configurations to prioritize UC traffic, minimizing jitter, latency, and packet loss.
High Availability & Redundancy
Our UC deployments include failover clustering, geo-redundancy, and disaster recovery capabilities to ensure uninterrupted communications.
lifecycle & sustainment
24/7 Monitoring & Performance Analytics
Our teams provide continuous operational oversight, incident response, and performance tracking across cloud environments to ensure availability and compliance.
Standards-Based Patching & Compliance
We maintain adherence to DISA STIGs, FedRAMP, NIST 800-53, RMF, and agency-specific mandates, embedding compliance into every stage of the cloud lifecycle.
User Training & Adoption Support
We design and maintain multi-region redundancy and failover strategies, conducting periodic recovery drills to ensure operational continuity.
Rapid Incident Response & Remote Support
We continuously evaluate emerging cloud technologies and security enhancements, integrating them into existing environments to maintain a leading-edge capability.
Configuration & Documentation Management
We maintain detailed diagrams, call flow documentation, and configuration baselines to support continuity of operations and system scalability.
Why GCA UC Support
We design and maintain secure, resilient UC environments that keep teams connected, productive, and mission-ready—no matter where they operate. Our lifecycle approach ensures that communications infrastructure evolves with the mission while maintaining compliance and operational continuity.