The CCIE –Voice certification is indicative of expert knowledge of Cisco Voice over IP (VoIP) products and solutions in an enterprise environment and demonstrates that the individual is capable of building and configuring complex end-to-end telephony network, troubleshooting and resolving VoIP-related problems. Although this certification does not require advanced skills in core IP routing, but the individual must ensure quality of service using in-depth understanding of Layer 2 and 3 network infrastructure. The topics that a candidate needs to prepare for this examination include:
Basic Campus DesignDHCP, TFTP, Catalyst voice and data VLAN configuration, Catalyst VTP configuration.
Call Manager and Call Manager Express ConfigurationPhone registration, Phone configuration.
Voice Gateway and SignalingAnalog and digital voice protocols: analog FXS, FXO-M1, T1, E1, PRI, CAS, R2, VoIP protocols: H323, MGCP, SCCP, SIP, RAS
Call RoutingCCM route patterns (@ wildcard not tested), CCM route preference and redundancy, IOS dial peers, Digit manipulation and translation.
Voice CODECG711ulaw, G711alaw, G729, G723
Call Admission ControlLocation-based, RAS-based.
High Availability FeaturesSRST, AAR
Media Resource ManagementConference bridge software and hardware, Transcoder, MTP, MOH.
QoS ConsiderationsL2/L3 classifications and policing, Queuing mechanisms, LFI, Catalyst switch QoS.
Unified MessagingUnity voicemail integration, Unity administration
CRS/IPCC Express ApplicationDefault script configuration and integration, Custom script configuration and integration.
Call Manager Voice ApplicationsAny native applications to Call Manager, examples are extension mobility, attendant console, IPMA.
Supplementary Services
Directory Services and Integration
FaxFax pass-through, Fax relay.
[Duration: 200 Hrs ]
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