1.4 Relationship with Global Call Library

The Global Call library provides a common call control interface that is independent of the underlying network interface technology. While the Global Call library is primarily used for call establishment and teardown, it also provides capabilities to support applications that use IP technology, such as:

• call control capabilities for establishing calls over an IP network, via the RADVISION H.323 and SIP signaling stacks
• support for IP media control by providing the ability to open and close IP media channels for streaming, using the IP media software internally (under the hood)

Note: Applications should not mix Global Call and IP media library usage of the same ipm_ devices.

Refer to the following Global Call manuals for more details:

• Global Call IP Technology User's Guide
• Global Call API Programming Guide
• Global Call API Library Reference

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