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CCNP Voice CIPT2 642-457 Quick Reference, Second Edition by David Schulz

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Chapter 3. Bandwidth Management and Call Admission Control

This chapter reviews methods of reducing allocating bandwidth and using Call Admission Control (CAC).

Bandwidth Management

This section reviews bandwidth conservation techniques for remote locations across the WAN.

Codec Configuration

Use high-bandwidth codecs in LAN environments and use low-bandwidth codecs in WANs. Use an alternative method than a low-bandwidth codec for MoH. These methods include using multicast from the branch office router or disabling MoH across the WAN. The codec used depends on the region configuration in CUCM.

Local Conference Bridge

This keeps traffic off the IP WAN. This is implemented using DSPs at the routers of the remote sites. Design considerations ...

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