Knowledge United

This is a unique, real-world IPTT lab environment that teaches you how to troubleshoot a sophisticated IP telephony network based on best practice recommendations for a real deployment. We have set ourselves apart from other Cisco training providers by enhancing our IPTT hands-on labs to include a real dial plan, the latest recommendations for Class of Service for calling out to the PSTN, branch offices, PBXs, and fault-tolerant gatekeeper and directory gatekeeper deployments.

Voice network labs use the latest hardware and software.

• Troubleshoot Cisco's new ISR routers: 2811s are used throughout the network
• Gain experience with recent stable IOS release: 12.3.14T3
• Configure CallManager 4.1.3
• Explore router DSP configuration: PVDM2-32 cards in every 2811 router
• Every router has 2xFXS, 2xFXO, and 2xT1 ports (PRI and T1-CAS) as well as serial ports for WAN connectivity
• All of the latest tools are deployed on the laptops for analyzing traces
• All laptops have sniffers installed

All IP telephony courses provide a simulated PSTN.

• Deploy Cisco CallManager 4.1.3sr1
• Every pod has internal and external phones
• Build and test a real dial plan including:
  • 911
  • 3-digit service codes: 411, 511, etc.
  • 7-digit local numbers: 681-1901
  • 10-digit local numbers: 416-681-1901
  • 11-digit long distance numbers: 1-733-802-1901
  • International numbers: 011441902

And just like in a real network:

• The same simulated PSTN is accessible through both PRI and FXO ports
• The same simulated PSTN is accessible through all four clusters providing failover scenarios for bandwidth and connectivity problems
• Different area codes are deployed at all sites (two per cluster)

You will troubleshoot a network with the following features:

• Four CallManager clusters deployed: two students are responsible for each cluster
• Each cluster has a Headquarters (HQ) and Branch router in different area codes
• The Headquarters router is MGCP controlled
• The Branch router is H.323 controlled
• Both HQ and Branch have 2 PBXs attached via T1-CAS
• Clusters are connected via gatekeeper controlled ICTs
• Gatekeeper clusters and fault tolerant directory gatekeepers are deployed
• SRST is fully deployed on all routers
• COR is fully deployed on all routers
• Hardware and software resources are deployed for conferencing
• Transcoding resources are deployed

What You'll Learn

• Apply effective troubleshooting methods to resolve issues in complex IPT networks
• Troubleshoot common CallManager configuration, integration, and operation problems
• Troubleshoot Cisco and Microsoft AVVID components using the appropriate utilities and management tools
• Troubleshoot common router, switch, and gateway configuration; integration; and operation issues and problems in AVVID networks
• Resolve QoS issues in complex IPT networks using effective and appropriate troubleshooting and implementation methods
• Troubleshoot common Unity configuration, integration, and operation issues and problems
• Employ Cisco TAC as a troubleshooting and escalation tool

Who Needs to Attend

System Engineers, Field Engineers, and anyone attempting IP Telephony certification that includes IP Telephony Troubleshooting would benefit.