The default location for the config file is ~/.o2smsrc (or ~/.vodasmsrc or ~/.meteorsmsrc). Use the config file to store your username, password, aliases and other settings.
Most config file settings correspond to a command line option. All config file settings are optional. Start with an empty file and add them as needed.
username <username> password <password> alias <name> <number> [name|number ...] sig <text-to-place-at-end-of-every-sms> proxy <http://host:port/> nosplit hardsplit nofill noreuse emulate-t9 squeeze