Reference section - SMPP


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.

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. alert_notification Syntax

Following is the format of the SMPP alert_notification PDU.

Field NameSize OctetsTypeDescriptionRef.
command_length4IntegerDefines the overall length of the PDU.4.7.4
sequence_number4IntegerSet to a unique sequence number.4.7.24
source_addr_ton1IntegerType of Number for alert SME.4.7.1
source_addr_npi1IntegerNumbering Plan Indicator for alert SME.4.7.2
source_addrVar. max 65C-Octet StringAddress of alert SME.4.7.29
esme_addr_ton1IntegerType of Number for ESME address which requested the alert.4.7.1
esme_addr_npi1IntegerNumbering Plan Indicator for ESME address which requested the alert.4.7.2
esme_addrVar. max 65C-Octet StringAddress for ESME which requested the alert.4.7.11
Optional TLVs:
TLV NameTypeDescription
ms_availability_statusTLVThe status of the mobile station4.8.4.39

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.

Find out more...

Please provide your name.
Please provide a valid company name.
Please type your message.
Please provide a valid email address.