Cisco C2901-CME-SRST/K9

The Cisco C2901-CME-SRST/K9 is a router model from Cisco's 2900 series. It is designed for small to medium-sized businesses and offers integrated services for voice, data, and video communication. The "CME" in the model name stands for Cisco Unified Communications Manager Express, which is a call processing solution for IP telephony. It provides features such as call forwarding, conferencing, voicemail, and more. The "SRST" in the model name stands for Survivable Remote Site Telephony, which is a feature that allows the router to act as a backup call control device in case of a network failure. It ensures that basic telephony services can still be maintained even if the connection to the main call control system is lost. Overall, the Cisco C2901-CME-SRST/K9 is a versatile router that combines routing, voice, and security features to support unified communications in small to medium-sized businesses.