c(all) [lac|id]   	  			:	incoming call named <lac> or by id <id>
o(utgoing) [lac|id] [phone#]   	:	outgoing call named <lac> or by id <id>, using phone #
t(unnel) [hostname]	  			:	start a tunnel to <hostame> and start related call.
s(how)				  			:	show status
h(angup) [id]         			: hangup call id <id>
d(isconnect) [lac|id] 			: disconnect call named <lac> or by id <id>
