Linux v5.2-rc1 - phonet
# Phonet protocol
tristate "Phonet protocols family"
The Phone Network protocol (PhoNet) is a packet-oriented
communication protocol developed by Nokia for use with its modems.
This is required for Maemo to use cellular data connectivity (if
supported). It can also be used to control Nokia phones
from a Linux computer, although AT commands may be easier to use.
To compile this driver as a module, choose M here: the module
will be called phonet. If unsure, say N.