The Cisco 2921 router, supporting voice module, is designed for small offices. CISCO2921-V/K9 include Voice Bundle. Product Code CISCO2921-V/K9 Voice Bundle · High-density-packet voice DSP module, optimized for voice and video support · Standards-certified VoiceXML browser services · Cisco Unified Border Element capabilities · Cisco Unity Express voicemail support · Support for Cisco Communications Manager Express and Survivable · Remote Site Telephony Rack Units 2U Interfaces 3 integrated 10/100/1000 Ethernet ports (RJ-45 only) Expansion Slot(s) 2 service module slot 1 Internal Service Module slot 3 onboard digital signal processor slots 4 Enhanced high-speed WAN interface card (EHWIC) slots RAM 512 MB (installed) / 2 GB (max) Flash Memory 256 MB (installed) / 8 GB (max) Dimensions 47 cm x 43.8 cm x 8.9 cm Package Weight 17.2 Kg
