LCS complience with IMS / SIP standards ?  
Author Message
Deepak K





PostPosted: ISV Open Discussions, LCS complience with IMS / SIP standards ? Top

1. It seems, to register to Live Communication server from a SIP client, NTLS or Kerbaros authentication is a must.

How to register from a SIP client which doesn't support NTLS or Kerbaros

Is there any configuration required on LCS to acheive the same

2. If LCS doesn't support HTTP Digest Authentication then its not interoperable with SIP standard rfc 3261 and IMS Please correct me if I am wrong

Please revert back !!!

Best Regards,

Deepak K Bramhapuriya



Microsoft ISV Community Center Forums2  
 
 
MS ISV Buddy Team





PostPosted: ISV Open Discussions, LCS complience with IMS / SIP standards ? Top

Per our support engineer:

Regarding following issue, our buddy has 2 questions on SIP standard in LCS.

1) How to register from a SIP client which doesn't support NTLS or Kerberos

2) Does LCS support HTTP Digest Authentication

LCS can choose one of the following based on server settings:

- Kerberos and NTLM (default)

- Kerberos

- NTLM

Communicator (Client) doesn't have UI controls for this - it will simply choose Kerberos if presented - if not, it will select NTLM. If presented with both, it will always choose Kerberos.

Moreover, I don’t think LCS has build-in feature of HTTP Digest Authentication. By default, we only support NTLM and Kerberos authentication.

-brend (ISV Buddy Team)



 
 
Cool_Zer0





PostPosted: ISV Open Discussions, LCS complience with IMS / SIP standards ? Top

Hi.

Is there a way for developers access the SIP NTLM especification
It's very hard to develop a client to connect to LCS if we can't find any documentation.


Thanks

 
 
Cool_Zer0





PostPosted: ISV Open Discussions, LCS complience with IMS / SIP standards ? Top

Hi.

Is there a way to access the SIP NTLM authentication of LCS
It's very hard to develop a client to connect to LCS if we can't find any documentation :(


Thanks

 
 
TerryMcP





PostPosted: ISV Open Discussions, LCS complience with IMS / SIP standards ? Top

You can license the protocol specs from MS. For information, go here: http://www.microsoft.com/about/legal/intellectualproperty/protocols/mcpp.mspx

There are specs for the MS extensions to SIP as well as NTLM Authentication.

The IETF RFC 4559 on SPNEGO-based Kerberos and NTLM HTTP Authentication in Microsoft Windows may shed some light on NTLM but is not completely germane to SIP.

HTH

Terry

P.S. I'm not a MS employee


 
 
Cool_Zer0





PostPosted: ISV Open Discussions, LCS complience with IMS / SIP standards ? Top

I'll take a look but I doubt that thay give me the NTLM authentication of SIP... Is not simple the NTLM authentication... Is the SIP NTLM authentication...


But I'll try...

Thanks