1.4. ISDN Features Supported

The BRI/2 provides applications access to the many features and benefits of ISDN using the Basic Rate Interface (BRI), which allows the transfer of both voice and data over standard 64 kbps lines.

The following ISDN functions are supported on the BRI/2. Refer to the ISDN Software Reference for information on using ISDN functions.

Table 3. ISDN Function Supported

API Functions	Description
cc_AcceptCall( )	responds to an incoming call request
cc_AnswerCall( )	accepts a connection request from the remote end
cc_CallAck( )	send the first response to an incoming call
cc_CallProgress( )	sends a "Progress" message to the network
cc_CallState( )	retrieves the state of a call
cc_CauseValue( )	retrieves the error/cause code of a failure
cc_Close( )	closes a previously opened line device
cc_CRN2LineDev( )	returns the line device number
cc_DropCall( )	allows the application to disconnect a call
cc_GetANI( )	retrieves Automatic Number Identification (ANI) information
cc_GetCallInfo( )	gets the information elements of the incoming message
cc_GetCRN( )	retrieves the call reference number for the event
cc_GetDLinkState( )	retrieves the logical data link state
cc_GetDNIS( )	gets the dialed number information string
cc_GetEvtMsk( )	retrieves the current ISDN event mask
cc_GetLineDev( )	retrieves the line device handle for an event
cc_GetMoreDigits( )	collects more digits via overlap receiving
cc_GetNonCallMsg( )	retrieves non Call associated ISDN messages
cc_GetParm( )	gets the current parameter values
cc_GetVer( )	retrieves the firmware version number
cc_HoldAck( )	accepts a hold request from remote equipment
cc_HoldCall( )	places an active call on hold
cc_HoldRej( )	rejects a hold request from remote equipment
cc_MakeCall( )	request a connection on the specified line device
cc_Open( )	opens a device
cc_ReleaseCall( )	release all resources
cc_ReleaseCallEx( )	release all Dialogic ISDN resources
cc_Restart( )	resets the channel to an idle state
cc_ResultMsg( )	interprets the function return code
cc_ResultValue( )	gets an error/cause code
cc_RetrieveAck( )	accept a retrieve request from remote equipment
cc_RetrieveCall( )	retrieve a call from HOLD state
cc_RetrieveRej( )	reject a retrieve request from remote equipment
cc_SetEvtMsk( )	sets the event mask
cc_SetInfoElem( )	sets additional information elements
cc_SetMinDigits( )	sets the minimum number of digits to be collected
cc_SetParm( )	sets the default channel parameters
cc_SndMsg( )	sends a call state associated ISDN message
cc_SndNonCallMsg( )	sends a non-call associated ISDN message
cc_StartTrace( )	start the capture of all D channel information
cc_StopTrace( )	stops the trace
cc_WaitCall( )	sets up conditions for processing an incoming call

The following IDSN functions listed in the ISDN Software Reference are NOT supported on the BRI/2.

• cc_TermRegisterResponse( )
• cc_SndFrame( )
• cc_SetChanState( )
• cc_SetBilling( )
• cc_SetCallingNum( )
• cc_SetUsrAttr( )
• cc_GetSAPI( )
• cc_GetBChanState( )
• cc_GetBilling( )
• cc_GetFrame( )
• cc_GetSigInfo( )
• cc_GetNetCRV( )
• cc_GetCES( )
• cc_GetUsrAttr( )
• cc_GetDChanState( )
• cc_ReqANI( )
• cc_SetDChanCfg( )
• cc_GetParmEX( )
• cc_SetParmEX( )
• cc_GetInfoElem( )

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