Reference section - SMPP
alert_notification
SMPP alert_notification
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. 4.8.4.52).
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.
4.1.3.1 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 |
| command_id | 4 | Integer | 0x00000102 | 4.7.5 |
| command_status | 4 | Integer | 0x00000000 | 4.7.6 |
| 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 |
| Optional TLVs: | ||||
| TLV Name | Type | Description | ||
| ms_availability_status | TLV | The status of the mobile station | 4.8.4.39 | |
SMPP Analyser
The SMPP Analyser acts as an SMPP proxy, with the client application binding to the service and the service onward binding to the SMSC or SMS Gateway. Packet captures can be viewed in your browser or exported into Wireshark. Use the online SMPP Analyser >
SMSC Simulator
Looking to test your SMS application or SMS-enabled application before connecting to a live SMS gateway or SMSC? Our SMSC Simulator service allows you to test using the SMPP protocol v3.3, v3.4 and v5. Read more about SMSC Simulator >
SMPP Client
Test an SMPP account and service using the Melrose Labs SMPP Client . Use from your web browser. No software installation necessary.