[Asterisk-Users] newbie: need help configuring asterisk and snom

[Conrad Braun]

Hi all,
I have been struggling desperately to get * work together with my 
snom100 for days on end, but I am not making any progress...
Of the entries marked *#) I'm still not sure what it does; so far I have
  on the snom
   in "SIP/lines"
    -user name - empty  *1)
    -account - Conrad
    -registrar - 192.168.200.83
    -action - "None" *2)
   in "SIP/authentication"
    -realm - empty  *3)
    -user - "Conrad"
    -pass - "secret"
    -line - "All"

  in asterisk:
   in "sip.conf"
    -host - "dynamic"
    -username - "Conrad"
    -callerid - ""     *4)
    -accountcode - ""  *5)
    -secret - "secret"

all I get in * is countless lines of
"NOTICE[81926]: File chan_sip.c, Line 5119 (handle_request): 
Registration from '<sip:Conrad at 192.168.200.83>' failed for '192.168.200.81'"

well, at least I get some result, but I can't figure out what's wrong.
any hints, links, ideas?
tia

-- 
Mit freundlichen Grüßen
Conrad Braun
Pentaprise GmbH
Im Pinderpark 5
D-90513 Zirndorf
http://www.pentaprise.de