Cisco Cisco Computer Telephony Integration Option 8.5 Technical References

Use this message to transfer a held call to an active call. The two calls must have connections to a single 
common device. Upon transfer, both of the connections with the common device become NULL and 
their connection identifiers are released.

You can also use this message to transfer an active call to another number (single step or blind transfer).

The TRANSFER_CALL_REQ message is defined in 

.

InvokeID

Set to the value of the InvokeID from the 
corresponding request message.

UINT

4

Maximum message size (including header):

12

MessageHeader

Standard message header. MessageType 
= 64.

MHDR

8

InvokeID

An ID for this request message, returned 
in the corresponding confirm message.

UINT

4

PeripheralID

The PeripheralID of the ACD where the 
calls are located.

UINT

4

ActiveConnection CallID

The Call ID value assigned to the 
currently active call by the peripheral or 
Unified CCE.

UINT

4

HeldConnectionCallID

The Call ID value assigned to the held 
call by the peripheral or Unified CCE. If 
there is no held call (single step transfer), 
this field must be set to 0xffffffff.

UINT

4

ActiveConnection 
DeviceIDType

The type of device ID in the 
ActiveConnectionDeviceID floating field 
(

USHORT

2

HeldConnectionDevice 
IDType

The type of device ID in the 
HeldConnectionDeviceID floating field 
(

). If there is no held call 

(single step transfer), this field must be 
set to CONNECTION_ ID_NONE and 
no Held Connection DeviceID floating 
field is needed.

USHORT

2

CallPlacementType

One of the values from 

specifying how the call is to be placed.

USHORT

2

CallMannerType

One of the values from 

specifying additional call processing 
options.

USHORT

2