[Asterisk-Users] '*' call conference?

[SamW]

I read the feature list of asterisk and I cannot see if it is possible
to conference a call between extensions.  Is it a supported feature of
asterisk or is it done in the UA (ATA186 in my case)

Here is what I try to do. 

	phone-a -dial-> phone-b
	tap the cradle (flash on phone-a)
	
	phone-a -dial-> phone-c
	tap the cradle (flash on phone-a)

Now I like all 3 phones in a conference call. Is this possible in
asterisk. I tried and I cannot do it that way, is there a configuration
that need to be done for call conferencing ? (Also note that asterisk
feature list do not list any feature with call-conferensing @
http://www.asterisk.org/index.php?menu=features )

Thank you in advance!


- SamW