The GetQueueList packet is transmitted from a TAPI client to a TAPI server in a remote procedure call. Sending this packet returns a list of queues that are associated with a particular ACD group. It generates a LINE_PROXYREQUEST packet to be sent to a registered proxy function handler, referencing a LINEPROXYREQUEST packet of type LINEPROXYREQUEST_GETQUEUELIST.

Req_Func (4 bytes): An unsigned 32-bit integer. The identifier of the function that will be invoked on the remote server. This value MUST be set to 153.

Return Values

On completion of ClientRequest, this field contains the result of the encapsulated telephony request. A nonzero request ID value indicates that the request is in progress and will complete asynchronously, and a LINEERR_Constants value indicates synchronous failure.

MUST return a request identifier if the asynchronous operation starts; otherwise, the function MUST return one of the following error values:

Name	Value
LINEERR_INVALLINEHANDLE	0x8000002B
LINEERR_INVALPARAM	0x80000032
LINEERR_NOMEM	0x80000044
LINEERR_OPERATIONFAILED	0x80000048
LINEERR_OPERATIONUNAVAIL	0x80000049
LINEERR_RESOURCEUNAVAIL	0x8000004B
LINEERR_UNINITIALIZED	0x80000050

Reserved1 (4 bytes): An unsigned 32-bit integer. MUST be set to zero when sent and MUST be ignored on receipt.

dwRequestID (4 bytes): An unsigned 32-bit integer. The identifier of the asynchronous request.

Value	Meaning
0x00000000	The server MUST generate a unique positive request ID to return as the Ack_ReturnValue.
0x00000001 — 0x7FFFFFFF	The server MUST use this value instead of generating a unique positive request ID.

lpContext (4 bytes): An unsigned 32-bit integer. The opaque, client-specified value that is used by the client upon request completion; MUST be returned by the server in the request completion packet.

hLine (4 bytes): An HLINE. The handle to the open line device. This field MUST have been obtained by sending the Open packet.

pGroupID (4 bytes): An unsigned 32-bit integer. The offset, in bytes, in the VarData field of a GUID that identifies the group for which the list of queues is requested. The GUID of the group is obtained by sending a GetAgentGroupList packet to the remote server.

cbGUID (4 bytes): An unsigned 32-bit integer. The size, in bytes, of the packet that is indicated in the pGroupID field, set to "sizeof (GUID)".

lpQueueListContext (4 bytes): An unsigned 32-bit integer. The opaque, client-specified value that is used by the client upon request completion; MUST be returned by the server in the request completion packet.

lpQueueList (4 bytes): An unsigned 32-bit integer. The maximum size, in bytes, of the queue list data that the client will accept on successful completion of this request.

Reserved2 (4 bytes): An unsigned 32-bit integer. This field is used for padding and MUST be ignored on receipt. It can be any value.

Reserved3 (4 bytes): An unsigned 32-bit integer. This field is used for padding and MUST be ignored on receipt. It can be any value.

Reserved4 (4 bytes): An unsigned 32-bit integer. This field is used for padding and MUST be ignored on receipt. It can be any value.

Reserved5 (4 bytes): An unsigned 32-bit integer. This field is used for padding and MUST be ignored on receipt. It can be any value.

Reserved6 (4 bytes): An unsigned 32-bit integer. This field is used for padding and MUST be ignored on receipt. It can be any value.

Reserved7 (4 bytes): An unsigned 32-bit integer. This field is used for padding and MUST be ignored on receipt. It can be any value.

VarData (16 bytes): Contains the GUID that is indicated by the pGroupID field.

The contents of this field MUST be DWORD-aligned, as specified in [MS-DTYP] section 2.2.9.