Dialogic IP Phone 05-2239-009 User Manual

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Dialogic Corporation

IPPARM_CONTACT_DISPLAY (deprecated) 

IPPARM_CONTACT_URI (deprecated) 

IPPARM_CONTENT_DISPOSITION (deprecated) 

IPPARM_CONTENT_ENCODING (deprecated) 

IPPARM_CONTENT_LENGTH (deprecated) 

IPPARM_CONTENT_TYPE (deprecated) 

IPPARM_DIVERSION_URI (deprecated) 

IPPARM_EVENT_HDR (deprecated) 

IPPARM_EXPIRES_HDR (deprecated) 

IPPARM_FROM (deprecated)

IPPARM_FROM_DISPLAY (deprecated) 

IPPARM_REFER_TO (deprecated) 

IPPARM_REFERRED_BY (deprecated) 

IPPARM_REPLACES (deprecated) 

IPPARM_REQUEST_URI (deprecated) 

IPPARM_SIP_HDR

IPPARM_TO (deprecated) 

IPPARM_TO_DISPLAY (deprecated) 

In each case, the parameter data is a string that represents the specified contents of the header 
field.

See 

, on page 183 for more 

information and a code example. 

To support T.38 fax server operation, the gc_SetUserInfo( ) function is used to associate a T.38 
Fax device with a Media device to facilitate a switch from an audio session to a T.38 fax session. 
Similarly, when switching form a T.38 fax session to an audio session, the gc_SetUserInfo( ) 
function is used to disassociate the T.38 Fax device from the Media device. The relevant function 
parameter values in this context are: 

target_type 

GCTGT_GCLIB_CRN 

target_id 

CRN 

duration 

GC_SINGLECALL 

infoparmblkp 

a pointer to a GC_PARM_BLK that contains:

the IPSET_FOIP parameter set ID and one of the following parameter IDs: 
 – IPPARM_T38_CONNECT when switching from audio to T.38 fax 
 – IPPARM_T38_DISCONNECT when switching from T.38 fax to audio 

an associated IP_CONNECT structure that contains the fax and media handles and the 
connection type (half-duplex or full-duplex)