Cisco Cisco Computer Telephony Integration Option 9.0 Developer's Guide

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Chapter 10      Call Object
Methods
10-12
CTI OS Developer’s Guide for Cisco ICM/IPCC Enterprise & Hosted Editions Release 7.0(0)
Syntax
C++:
int Answer()
int Answer(Arguments & reserved_args)
COM:
HRESULT Answer (/*[in,optional]*/ IArguments *reserved_args,   
(/*[out, retval]*/ int * errorcode )
VB:
Answer([reserved_args As IArguments]) As Long
Java:
int Answer(Arguments rArgs)
.NET:
CilError Answer(Arguments args)
Parameters
reserved_args
Not currently used, reserved for future use.
errorcode
An output parameter (return parameter in VB) that contains an error code 
from 
 in 
Return Value
Default CTI OS return values. See 
Remarks
A call may be answered after the OnCallDelivered event has been received.  The 
Answer  request must be made via a call whose call status LCS_ALERTING or it 
will fail.
The following events will be received  if this request is successful: 
  •
OnAnswerCallConf event
  •
OnCallEstablished event
The following events will be received  if this request fails: 
  •
OnControlFailureConf event