Integration of Voice and Data Networks

The next step for an enterprise customer is to simplify the local-area network (LAN) by implementing a common voice and data network to the desktop. This is accomplished with IP phones, as shown in Figure 616.

Figure 6-16. Voice/Data Integration to the Desktop

Figure 6-16. Voice/Data Integration to the Desktop

This type of integrated network provides numerous cost savings:

• Phones use DHCP and keep phone numbers regardless of physical location.

• Cabling to the desktop is easier (everything is Ethernet).

• Call appearance remains the same whether the user is at home or at work. This enables fully transparent telecommuting.

• The call-processing engine is now on a standard platform, which provides the enterprise network with greater flexibility.

• Cisco's Call Manager is actually configurable through Hypertext Markup Language (HTML), which simplifies administrative overhead as well as PBX administration.

• Cisco's Call Manager can also support other standards-based interfaces such as Station Message Desk Interface (SMDI) for an interface into a legacy PBX. As an example, you can use this interface to illuminate the message-waiting light.

Putting voice on data networks in enterprise, service provider, and other types of networks affords numerous additional benefits. Some are apparent, and some have yet to be discovered.

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