SRST Endpoints refer to Cisco Unified Survivable Remote Site Telephony, which ensures reliable communications for branch offices, teleworkers, and cloud telephony deployments. It offers business continuity, particularly in the event of Wide Area Network (WAN) failures, by providing redundant call processing at remote sites. This fallback support ensures that Cisco Unified IP Phones maintain basic functionality even when disconnected from primary, secondary, or tertiary call control systems.
Key Features:
- Business Resiliency: SRST provides redundant and localized call processing to ensure business continuity.
- Automatic Failover and Recovery: The system detects failures and automatically switches to providing call handling through an SRST router. When the connection is restored, phones revert to the primary call processing system.
- Centralized IP Telephony Configuration and Management: SRST offers centralized management of remote sites, making it easier to provision, monitor, and troubleshoot.
- Cost-Effective Operations: By utilizing a converged voice and data network, SRST optimizes costs.
- Support for Cisco Unified IP Phones: This solution specifically ensures that Cisco Unified IP Phones remain functional during WAN disruptions.
- Programmable Line Keys and Customizable Layouts: It offers customization options for line keys and phone layouts.
- Forced Authorization Code (FAC) Support: SRST supports FAC to enhance security and control.
- Automatic Synchronization and Provisioning: In the case of E-SRST (Cisco Unified CME-based SRST), the system automatically synchronizes with Cisco Unified Communications Manager (CUCM) and provisions remote branch sites
