--show --list -l Show active DUN connections
--listen -s Listen for DUN connections
--dialup -u Listen for dialup/telephone connections
--connect -c <bdaddr> Create DUN connection
--mrouter -m <bdaddr> Create mRouter connection
--search -Q[duration] Search and connect
--kill -k <bdaddr> Kill DUN connection
--killall -K Kill all DUN connections
--channel -C <channel> RFCOMM channel
--device -i <bdaddr> Source bdaddr
--nosdp -D Disable SDP
--auth -A Enable authentification
--encrypt -E Enable encryption
--secure -S Secure connection
--master -M Become the master of a piconet
--nodetach -n Do not become a daemon
--persist -p[interval] Persist mode
--pppd -d <pppd> Location of the PPP daemon (pppd)
--msdun -X [timeo] Enable Microsoft dialup networking support
--activesync -a Enable Microsoft ActiveSync networking
--cache -C [valid] Enable address cache