# acu_ss_notify_transfer_invoke

Performs a notify transfer operation.

#### Variant

ETS 300/Q.SIG

#### Operation ID

ACU_OP_ID_NOTIFY_TRANSFER

#### OpType

ACU_OP_TYPE_INVOKE

#### Structure

struct acu_ss_notify_transfer_invoke
{
struct acu_ext_hdr ext_hdr; /* Extension header */
struct acu_ss_hdr ss_hdr; /* Supp. services header */
struct acu_party_name redir_name; /* Name of new connected party */
struct acu_ss_association charge_id; /* For AOC-E Interworking, Q.SIG*/
/* only */
struct acu_party_num redir_nb; /* Indicates no. of joined party*/
struct acu_conn_id joined_conn_id; /* Applies in APPL->CC */
/* direction */
struct acu_party_subaddress redir_sub;/* Subaddress of joined party */
ushort response_rq; /* If ON, app must respond */
uchar call_status; /* From ACU_SS_CALL_STATUS... */
/* constants */
uchar end_designation;/* Primary/Secondary, Q.SIG only*/
uchar update; /* If ON, provides additional */
pad3 /* info for last transfer */
};

#### Fields

Field | Description | Mandatory in messages to ETS 300 user-side app? | Mandatory in messages from Q.SIG PINX serving user A? | Mandatory in messages to Q.SIG PINX serving users B and C?
--- | --- | --- | --- | ---
redir_name | Indicates supplementary service is invoked, and remaining name fields are valid. For Q.SIG only. | Not included | Optional | Not included
charge_id | Charge identifier. Used when AOC-E service has been invoked. See AOC and explicit call transfer (ECT) services. | Not included | Reserved | Reserved
redir_nb | Indicates number of joined party. This field, joined_conn_id, or redir_sub must be specified in request messages. | Optional | Yes | Optional
joined_conn_id | Connection ID for joined party. Must be specified in first invocation of notify transfer for a remote party. Exception: can be left out of request message if only one party is on the network (the other is local). This field, redir_nb, or redir_sub must be specified in subsequent request messages. | Not included | Optional | Not included
redir_sub | Subaddress of joined party. This field, redir_nb, or joined_conn_id must be specified in request messages. | Optional | Optional | Optional
response_rq | ON/OFF. If ON, then the application is requested to respond. | Yes | Not included | Yes
call_status | Joined user alerting or answered. From ACU_SS_CALL_STATUS constants. | Yes | Yes | Yes
end_designation | Primary/secondary. For Q.SIG only. From ACU_SS_END_DESIGNATION constants. | Not included | Yes | Yes
update | If ON, indicates this structure contains updated information not included in previous acu_ss_notify_transfer_invoke structure. | Optional | Optional | Optional