Simple SMPPv3.4 codec and connection library for Smalltalk/Pharo built by moiji-mobile and used by the SMPP Router, SMSC and the GSM SMS to SMPP HomeRouting.
The built-in connection code can be used to build an ESME or MC with automatic handling of EnquireLink (sending it and closing the connection in case of timeout). On top of the connection and codec is the command structure that allows to send messages and deal with success, failure or timeout.
In an ad-hoc micro benchmark on an average 2015 13" Macbook Air morethan 8.000 DeliverSM messages can be decoded and then re-encoded in a second. Pure decoding speed is with more than 17.000 DeliverSM messages a second.