[openSer] slight problem with REGISTER

Hello!
I'm having bit of a problem with user authentication. From some clients works, from some doesn't.

I've inspected packets with wireshark on client and server side, registration goes as follows:
REGISTER
100 trying
401 unauthorized
REGISTER
100 trying
200 OK

This seems to confuse HP sip phone, as it doesn't retry to register as e.g. twinkle or ekiga does.
The difference between first and second REGISTER packet is that in first one there is no authorization field in message header.

Is this client or server missbehaviour?

This is openser cfg:
http://www.voipuser.org/ship_to.php?url ... fg.current

This is small wireshark dump indicating described problem:
http://files.myopera.com/kriko/files/wshark.dump

Thank you!

I dont understand what your problem is. The security challenge is done and the server 20ok's the registration. I dont see any example of a client failing to register.. am i missing something?

Sorry, wrong dump. This is what happesn if HP sip phone tries to connect:
http://files.myopera.com/kriko/files/hp_sip

its a problem with the client (softphone)

Thank you for your reply!

And there is nothing I can do on the server side?
I hope there are not too many such broken clients around...

Quote:

And there is nothing I can do on the server side?

nope, not unless you want to stop challenging registrations

Quote:

I hope there are not too many such broken clients around...

I'm afraid there are quite a few