Sysmocom: Free Software for Mobile Communication
http://pharo.org/success/Sysmocom

"Sysmocom is a leading provider of Free Software Mobile Communication solutions. In 2012 we have started a long term project to develop a complete ASN1, TCAP, MAP, CAP, GSN stack using the Pharo Object Environment. We have decided��to use Pharo because of the increased productivity, the great tooling, the live inspection and if necessary modification of a running system to deploy a critical bugfix. Pharo has allowed us to focus on what is important.

The stack was used to uncover security and privacy issues inherent to the MAP protocol design in 2014/2015. We have used the stack to build a carrier-grade AuthenticationCenter (AuC) and helped a customer��to move their production traffic off��a proprietary system to ours. We look forward to move a HomeLocationRegister (HLR) into production this year. said Holger Freyther CEO."