Dialogic Global Call IP Benutzerhandbuch

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Dialogic Corporation

The information in this section only applies when the Dialogic

®

 Global Call API IP call control 

library is started in the first party call control (1PCC) operating mode. The extension events that 
provides the capabilities described in this section are not supported when the library is started in 
the third party call control (3PCC) operating mode.

The Global Call library allows applications to receive unsolicited notification events for several 
different types of state changes and other transition events. 

This section includes the following topics:

The application can enable and disable the unsolicited GCEV_EXTENSION notification events 
associated with certain types of transition events, including: 

media streaming connection state changes (see 

)

underlying protocol (Q.931 and H.245) connection state changes (see 

DTMF digit detection (see 

Enabling and disabling unsolicited GCEV_EXTENSION notification events is done by 
manipulating the event mask, which has a default value of zero, using the gc_SetConfigData( ) 
function. The relevant gc_SetConfigData( ) function parameter values in this context are: 

target_type – GCTGT_CCLIB_NETIF 

target_id – IPT board device 

size – set to a value of GC_VALUE_LONG 

target_datap – a pointer to a GC_PARM_BLK structure that contains the parameters to be 
configured 

The GC_PARM_BLK should contain a parameter element with the 
IPSET_EXTENSIONEVT_MSK set ID and one of the following parameter IDs: 

GCACT_ADDMSK 

Add an event to the mask

GCACT_SUBMSK 

Remove an event from the mask 

GCACT_SETMSK 

Set the mask to a specific value