Dialogic 05-2239-009 User Manual

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Dialogic Corporation

Table 5 shows the supported Q.931 message Information Elements (IEs), the parameter set ID and 
parameter ID that should be included in a GC_PARM_BLK when setting or retrieving the IEs, and 
the maximum allowed length of the IE value. 

The Dialogic

®

 Global Call API library supports the setting of the following Information Elements 

(IEs) in the following outgoing Q.931 messages: 

Bearer Capability IE in a SETUP message 

Facility IE in SETUP, CONNECT, and FACILITY messages 

The gc_SetUserInfo( ) function is used to set these IEs. The appropriate function parameters in 
this context are: 

target_type – GCTGT_GCLIB_CHAN 

target_id – line device 

infoparmblkp – a GC_PARM_BLK containing the IPSET_CALLINFO parameter set ID and 
one of the following parameter IDs: 

IPPARM_BEARERCAP 

IPPARM_FACILITY 

duration – GC_SINGLECALL (GC_ALLCALLS is not supported in this context)

The Dialogic

®

 Global Call API library supports the retrieval of the following Information Elements 

(IEs) from the following incoming Q.931 messages: 

Bearer Capability IE in a SETUP message 

Facility IE in SETUP, CONNECT, and FACILITY messages 

Table 6 shows the Dialogic

®

 Global Call API events generated for incoming Q.931 messages and 

the parameter set ID and parameter IDs contained in the GC_PARM_BLK associated with each 
event. 

Bearer Capability 

Get and Set

IPSET_CALLINFO

IPPARM_BEARERCAP

255 

Facility Get 

and 

Set

IPSET_CALLINFO

IPPARM_FACILITY

255 

Note: These parameters are character arrays with the maximum size of the array equal to the maximum 

length shown.