[asterisk-users] can asterisk accept "anonymous" register ?

[zhou tianjun]

Hi all,
When i use  asterisk-1.6, I must pre-write some extens to
sip.conf or realtime db , then sip clients can register with asterisk.
but now I want to do nothing with pre-writing extens to sip.conf or
realtime db,
when sip client register with asterisk, the asterisk accepte the
register info and
save it to realtime db.  I want to know does the asterisk can realize
that. Or  I
have to write module for that function ?

thanks in advance.

-- 
With best regards
sunone