gsmsiexfer --version (return code: 0)
gsmsiexfer: version 1.10 [compiled Aug 15 2015]
gsmsiexfer --help (return code: 0)
gsmsiexfer: [-b baudrate][-c][-d device or file][-h][-I init string]
[-p phonebook name][-s device or file][-t charset][-v][-V][-y][-X]
-b, --baudrate baudrate to use for device (default: 38400)
-c, --copy copy source entries to destination
-d, --destination sets the destination device to connect
to, or the file to write
-D, --destination-backend sets the destination backend
-h, --help prints this message
-i, --index takes index positions into account
-I, --init device AT init sequence
-p, --phonebook name of phonebook to use
-s, --source sets the source device to connect to,
or the file to read
-t, --charset sets the character set to use for
phonebook entries
-S, --source-backend sets the source backend
-v, --version prints version and exits
-V, --verbose print detailed progress messages
-X, --xonxoff switch on software handshake
-y, --synchronize synchronize destination with source
entries (destination is overwritten)
(see gsmpb(1) for details)