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44 Dialogic
®
Global Call IP Technology Guide — November 2007
Dialogic Corporation
Dialogic
®
Global Call API Architecture for IP
Figure 5. Dialogic
®
Global Call API Over IP Architecture
To simplify IP Media management by the host application and to provide a consistent look and feel
with other Dialogic
®
Global Call API technology call control libraries, the IP Signaling call control
library (IPT CCLib) controls the IP media functionality on the application’s behalf.
Note: Dialogic
®
Global Call API supports the RADVISION H.323 and SIP stacks. If other third-party
call control stacks are used, Dialogic
®
Global Call API cannot be used for IP call control, but the
Dialogic
®
IP Media Library API can be used directly by applications for media resource
management. See the Dialogic
®
IP Media Library API Programming Guide and Dialogic
®
IP
Media Library API Library Reference for more information.
2.2 Architecture Components
The role of each major component in the architecture is described in the following sections:
• Host Application
• Dialogic
®
Global Call API
• IP Signaling Call Control Library (IPT CCLib)
• IP Media Call Control Library (IPM CCLib)
• IP Media Resource
GlobalCall
Host Application
IP Media
Resource
Signaling
IP Network
CT Bus
Media
IP Network
TDM
RTP/RTCP
Call Control
Media
Routing
IP Media
Call Control
Library
(IPM CCLib)
H.323 or SIP
Call Control
Library
(IPT CCLib)
Host
Board
Host
NIC
Media
Control