4.1.3 Alert Notification Operation
The alert_notification PDU is sent by the MC to the ESME across a Receiver or Transceiver session. It is sent when the MC has detected that a particular mobile subscriber has become available and a delivery pending flag had been previously set for that subscriber by means of the set_dpf TLV (ref. 188.8.131.52).
A typical use of this operation is to trigger a data content "Push" to the subscriber from a WAP Proxy Server.
Note: There is no associated alert_notification_resp PDU.
184.108.40.206 alert_notification Syntax
Following is the format of the SMPP alert_notification PDU.
|Field Name||Size Octets||Type||Description||Ref.|
|command_length||4||Integer||Defines the overall length of the PDU.||4.7.4|
|sequence_number||4||Integer||Set to a unique sequence number.||4.7.24|
|source_addr_ton||1||Integer||Type of Number for alert SME.||4.7.1|
|source_addr_npi||1||Integer||Numbering Plan Indicator for alert SME.||4.7.2|
|source_addr||Var. max 65||C-Octet String||Address of alert SME.||4.7.29|
|esme_addr_ton||1||Integer||Type of Number for ESME address which requested the alert.||4.7.1|
|esme_addr_npi||1||Integer||Numbering Plan Indicator for ESME address which requested the alert.||4.7.2|
|esme_addr||Var. max 65||C-Octet String||Address for ESME which requested the alert.||4.7.11|
|ms_availability_status||TLV||The status of the mobile station||220.127.116.11|