Updates for Ubiquiti's UniFi Talk and several Cisco IP phone series close security vulnerabilities rated "High".

Cisco has disclosed today a high-severity zero-day vulnerability affecting the latest generation of its IP phones and exposing them to remote code execution and denial of service (DoS) attacks. The ...

Survivable Remote Site Telephony (SRST) is a Cisco Unified Communications Manager (CUCM) call processing backup mechanism that allows Cisco IP phones to register to a Cisco router. A Cisco router in ...

This lesson introduces and describes the role, architecture, hardware and software requirements, and the licensing model of the CUCM. Cisco Unified Communications (UC) is an IP-based communications ...