startsrv fires up ttysrv for a given host. It will kill any already running instance for that host, then read /etc/remote-tty/opt/<host>.srv for any options to pass to ttysrv (defaulting to those that set 9600,8n1), /etc/remote-tty/prot/<host>.sock for the permissions the socket should be set to (default 660), /etc/remote-tty/owner/<host>.sock for the owner of the socket (default rttymgr:dialout) and /etc/remote-tty/prot/<host>.log for the permissions of the logfile (default 640).
The device node used is /etc/remote-tty/dev/<host>. This will normally be a symlink to the correct file in /dev.
ttysrv is configured to log to /var/log/remote-tty/<host>/<host>, with a pidfile at /var/run/remote-tty/pid/<host> and the socket at /var/run/remote-tty/sock/<host>.