VoIP Signaling and H 323 Call Control To identify the role of signaling and call control in a VoIP network, configure H.323 gateways and gatekeepers, and identify the various commands used to monitor and troubleshoot H.323 IT professionals responsible for preparing, configuring, and maintaining a voice and data network; candidates preparing for the Cisco Certified Voice Professional certification (CVOICE 642-432) more...