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call manager, callmanager, cisco, cme, dial-peer, ephone, fxo, fxs, intercom, opx, plar opx, voip This is just a quick post on how to setup CallManager Express for home using a Cisco 2800 series router. Cisco Call Manager Express. Cisco Call Manager Express is designed to run on Cisco 1800, Cisco 2800, and Cisco 3800 series routers. Cisco Call Manager Express has almost all the features of the enterprise solution Cisco Call Manager but is optimized for small to medium sized businesses. Carrying decades of experience with the largest portion of the switching and routing market, Cisco Call Manager and Call Manager Express were born. Cisco CallManager, now officially named 'Cisco Unified Communication Manager' or CUCM, is a server-based IP Telephony solution and currently Cisco's flagship VoIP product. A vulnerability in Cisco IOS Software for Cisco CallManager Express (CME) could allow an unauthenticated, remote attacker to make unauthorized phone calls. The vulnerability is due to a configuration restriction in the toll-fraud protections component of the affected software. I'm playing around with Packet Tracer and Call Manager Express, and having some trouble. I've configured a DHCP pool for the phones, but the phones don't seem to be picking up IP addresses.