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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:
•
•
 
•
 
•
 
•
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