SMPP 3.4 stand for short message peer to peer and is a standard protocol used to connect directly to a SMSC (short message service center). SMPP connectivity is normally used for high volume bulk SMS sends.
SMSC throughput 5-8 msg/second, 3 servers 25 msg/second
Minimum batch purchase volume: 100,000 (one hundred thousand)

SMS warehouse have several networks available and customers are best served by providing us with details of the networks they wish to deliver to, preferred pricing and features required.

We will provide clients that comply to the minimum purchase volume with testing, confirmation of route availability and confirmation of quotes.

Clients will have a choice between:

• Commercial routes:
  Lower priced routes. Normally these routes do not have delivery reports and dynamic sender ID - pricing from 3.0 EC/SMS
• Interconnect routes:
  These routes are very reliable as interconnect fees apply - supports dynamic sender ID, delivery reports etc. Pricing varies depending on networks and destination.

Where could I find out more about smpp?

SMS forum. SMPP 3.4 White paper is available from the SMS forum. You will have a small window to download this document once you completed the form and e-mailed them. The SMS Forum, in conjunction with Aersoft Ltd., also provide a free download of a SMPP Client Test Tool (SCTT). This tool can be used to simulate a SMPP-based Message Centre and assist in testing a SMPP client (ESME). The tool is available for Linux, HP-UX and SunOS.

SMPP PDU Encoder: a PHP-based utility that can build a submit_sm PDU and help educate the user to understand the PDU encodings used in SMPP.

Free LogicaCMG download of their SMPP API

SourceForge host an open source Java SMPP API.

Ethereal - free network protocol analyzer for Unix and Windows.

Kannel open source WAP and SMS gateway. Included in the project is source code for an SMPP API and APIs for several other popular SMS access protocols such as UCP/EMI, CIMD, OIS, SM/ASI, SOAP and even GSM modems.