- https://github.com/faucamp/python-gsmmodem
- https://github.com/gammu/gsm-docs
- https://github.com/gen2brain/gsmgo
- https://github.com/Looongcat/gsm-parser-c
- https://github.com/MaJerle/GSM_AT_commands_parser
- https://github.com/moteus/lua-lluv-gsmmodem
- https://github.com/pmarti/python-messaging
- https://github.com/ptrkrysik/gr-gsm
- https://github.com/vbouchaud/gsmlib
- https://github.com/warthog618/modem
- https://github.com/xlab/at