10.1 Service Request Overview

The Global Call Service Request (GCSR) feature is an optional feature that allows a device to send a request to another remote device for some kind of service. Some examples of the services that may be requested are:

• Device Registration
• Channel Setup
• Call Setup
• Information Requests
• Operational Requests

In general, this feature is useful when a Global Call application needs to make a request between two Global Call devices across a network.

Some examples of typical uses are:

• Registration Requests
• Administration Requests (for example, logon requests)
• Bandwidth Requests
• Capabilities Requests (for example, determining remote-side capabilities)
• Preference Requests (for example, informing remote-side of setup preferences)

Since this feature is rather generic, the capabilities in a given technology are largely dependent on the support provided by the call control libraries for that technology. Refer to the appropriate Global Call Technology User's Guide for more information.

Figure 41 shows the architecture of the GCSR feature.

Figure 41. Service Request Architecture

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