What is the SMPP protocol?

Question

What is the SMPP protocol and how does it work?

I've not even seen it yet and have to start with introduction onward.

Answer 1

SMPP is a low-level binary Internet protocol.

The primary use of SMPP is to send and receive medium-to-high volumes of SMS texts.

SMPP uses a standard Internet connection to connect to an SMPP provider, to do away with or compliment the purchase of a GSM modem or a SIM card.

SMPP offers the following benefits over a GSM modem:

• Send by a meaningful name e.g. a company name instead of phone number.
• Send by a short codes; 3, 4, or 5 digit phone number instead of the normal length.
• Faster processing

Software:

• Kannel is an open-source client for experimenting on.
• ActiveXperts Mobile Messaging Toolkit is a commercial solution with SMPP simulator.

For the record: I'm a programmer at ActiveXperts, actively involved in SMPP and SMS related developments.