[Serdev] enhancement to group module

Jan Janak jan at iptel.org
Tue May 11 13:34:59 UTC 2004


On 10-05 16:03, Chris Crawford wrote:
> Hello.
> I am looking into making an enhancement in the 0.8.12 group module.
>  
> Here is the scope.  Currently we are employing anonymous caller ID by
> changing the From field to a predefined string that disguises the
> caller's identity.  
>
> The Contact header contains the relevant information
> for the caller.  UACs that display the From field on the caller id will
> see the anonymous name.
>  
> So now, there are some issues with this implementation when using ser.

  Do you change From header field in SER ? If so then expect interoperability
  problems. Proxies must not change From, you will need a B2BUA for
  that.

> More specifically, when not using authentication and checking the
> associated ACL for the user.  The ACL check (is_user_in) only checks the
> following fields when not using authentication "from,to and
> request-uri".  I want to add "contact" as another header to for the
> is_user_in routine.  

  It is legal to have a Contact header field without username or with a
  completely different username. For example kphone puts your unix/linux
  username in there which will be probably different from username in
  To/From/Request-URI.

    Jan.




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