-instead of addresses taken from configuration file. You can specify both
-@verb{|host:port|} and @verb{#|some command#} formats.
+instead of addresses taken from configuration file. You can specify
+@verb{|host:port|}, @verb{#|some command#} and
+@verb{|yggdrasil:PUB;PRV;PEER[,...]|} formats.
+
+If you specify @option{-ucspi} option, then it is assumed that you run
+@command{nncp-call} command under some UCSPI-TCP compatible utility,
+that provides read/write channels through 6/7 file descriptors.
+
+@option{-mcd-wait} options tells to wait up to specified number of
+seconds for the @ref{MCD} packet from the specified @code{NODE}. When
+the packet is received, initiate a call.