Intel 05-2409-003 Manual Do Utilizador

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Global Call API for HMP on Windows Programming Guide — August 2006
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Application Development Guidelines
connected so as to provide the calling party with immediate outbound line status and voice cut-
through. 
For a drop and insert application in which a call cannot be completed, the application can simulate 
and return a busy tone or a fast busy (redial) tone to the calling party. Typically, this condition 
occurs when a GCEV_DISCONNECTED event is generated due to a timeout or a protocol error 
during dialing or due to R2 backward signaling indicating a busy called party’s line, equipment 
failure, network congestion or an invalid telephone number. 
When a call cannot be completed because the called party’s line is busy: 
1. Use a tone or voice resource to generate a busy tone (60 ipm [impulses per minute]) or to 
record a busy tone. 
2. Connect the busy tone to the calling party’s line or play back the recorded busy tone file. 
3. Drop and release the calling party’s line when a GCEV_DISCONNECTED event is received. 
When a call cannot be completed because of equipment failure, network congestion or an invalid 
telephone number: 
1. Use a tone or voice resource to generate a fast busy tone (120 ipm) or to record a fast busy 
tone. 
2. Connect the fast busy tone to the calling party’s line or play back the recorded fast busy tone 
file. 
3. Drop and release the calling party’s line when a GCEV_DISCONNECTED event is received. 
For voice function information, see the Voice API Library Reference for your operating system.
5.3
Using Global Call with Digital Network Interface 
Boards
The HMP software can be used in conjunction with Intel NetStructure
®
 Digital Network Interface 
boards that provide physical E1 and T1 interfaces. These Digital Network Interface boards are 
based on the DM3 architecture. Global Call supports the development of applications that use these 
boards. The following topics provide guidelines for using Global Call with Digital Network 
Interface boards: 
 
5.3.1
Routing Overview
The HMP software supports flexible routing configurations. With flexible routing, the resource 
devices (voice/fax/media) and network interface devices are independent, which allows exporting 
and sharing of the resources.