Genesys Cloud provides a comprehensive telephony system designed for administrators to configure communications infrastructure across multiple deployment scenarios. The platform offers three flexible connection options: Genesys Cloud Voice (a complete solution with Genesys-provided telephony service), Bring Your Own Carrier (BYOC) options for third-party device interoperability, and hybrid media capabilities. The architecture supports Global Media Fabric and global telephony settings to accommodate diverse organizational needs. Core telephony components include trunks that connect communication services to Genesys Cloud connection options, sites that define telephony properties and routing rules, managed SIP phone configuration, extension pools, and extension assignments. Administrative functions encompass DID and toll-free number management, extension configuration, certificate authority management for digital identification and encryption, and firewall port and service specifications. The platform supports BYOC deployment options for both cloud and premises environments, enabling organizations to integrate existing infrastructure. Phone management capabilities and global telephony settings provide centralized control over communications infrastructure. A significant deprecation notice indicates that Genesys Cloud BYOC Premises – Genesys Hardware Solution will reach End of Support on December 1, 2026, requiring administrators to evaluate and plan for alternative solutions in advance of this timeline. The documentation includes a feedback mechanism that allows users across multiple roles—including agents, administrators, developers, engineers, partners, supervisors, and support personnel—to report issues such as inaccurate or incomplete information, outdated content, or clarity concerns. Related documentation resources are available to support telephony setup and configuration implementation.