Cisco 640-461 (ICOMM) Exam Training

Learn voice over IP terminology and key codecs like G.711 and G.729, including A-law and mu-law, and how bandwidth, T-38 fax, and DTMF tones affect IP calls.

Configure CUCM Express for the CCP app by enabling http/https and setting local authentication. Create a local user CCP with privilege 15 and enable telnet/ssh on vty lines, then save.

install web gui administration on the router using the co-manager express tar; it includes telephony upgrade tools, verify the tar version matches your cmt, then extract to flash with archive.

Continue installing the web GUI by extracting the full package to router flash, review sbm and bbn firmware files, and prepare readme-driven tftp server commands for proper file serving.

Configure the Cisco ip communicator in global mode, set the mac address and type, then enable auto registration in telephony service for registration with the co-manager express router.

Configure a directory number (dn) and assign it to a phone via the GUI, creating extension 1150 with a normal ring extension, then save and verify on the phone.

Understand how dial peers route local and off-net calls between extensions and the PSTN, using inbound and outbound dial peers, call legs, and voice gateways.

Configure dial peers by matching a destination pattern and routing to a voice port or remote voip ip, using pots or voip peers and wildcard patterns.

Learn to combine destination patterns and wild cards to create complex dial plans, using ranges in brackets, the t wildcard, and international formats like 9011 with a trailing pound.

Set up and verify dial peers on the voice gateway to route VOIP calls to analog lines, demonstrating destination patterns, session targets, and port mappings with a live test.

Explore configuring class of restriction using dial-up entries to separate local, long distance, emergency, and toll-free calls in unified communications manager, with a custom configuration step.

Configure intercoms by creating two speed-dial extensions, selecting whisper mode or hold and barge options, and pushing the configuration to IP phones with distinctive labeling to prevent accidental dialing.

Explore the network requirements for a functional voice over IP implementation, focusing on end-to-end delay, jitter, and packet loss, and how latency across the PSTN impacts call quality.

Explore call routing in the CUCM admin interface, configuring route patterns, route groups, translation patterns, partitions, and calling search spaces, including directory numbers, call park, and call pickup.

Explore CUCM's command line interface, its relationship to the web interface, and practical tips using putty, tab completion, and utilities like system restart and show disk usage.

Learn to bulk administer phones by uploading a CSV, selecting insert phones with specific details, validating the template, and running import jobs with dummy MAC addresses.