This MIB allows management of Cisco Survivable Remote Site Telephony (SRST) feature in Cisco IOS. SRST is an optional software feature that provides Cisco CallManager with fallback support for Cisco IP phones attached to a Cisco router on a local network. The CISCO-CCME-MIB provides management of Cisco CallManager Express (CCME) feature in Cisco IOS. CCME is an optional software feature that enables Cisco routers to deliver IP telephony services for small office environment. Ephone, ephoneDN, button association tables are common to both CCME and SRST MIBs and are defined in CISCO-CCME-MIB. Ephone specific notifications which are common to CCME and SRST are also defined in CISCO-CCME-MIB.