Subject: Re: VS: [Sipping] More thoughts on fixing early media -- usingnull authentication

From: "Christer Holmberg" <[email-masked]>
Date: Mon, 24 Jul 2006 11:42:57 +0300

Hi,

Even if the proxy collects the 401s, the next INVITE (with the credentials) would still be forked to all UASs. So, if you want to give a specific UAS petmission to play media you would need some UAS specific parameter to indicate that.

However, I don't think we should mix/mandate authentication with early media, because in some environments it may not be needed.

Regards,

Christer

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Subject:	Re: VS: [Sipping] More thoughts on fixing early media -- usingnullauthentication
Author:	"Jeroen van Bemmel" <[email-masked]>
Date:		24th July 2006 8:15:51 am

>> In case of forking, would the UAC need to get this 401 response  from ALL 
>> UASs that want to send early media? The forking proxy  wouldn't fowards 
>> all 401 responses, would it?
>>
>
> The proxy had better forward 401s . . .
>

The proxy would collect all 401's and combine them to a single answer, 
containing all challenges. So as long as you put your early media thingy as 
a parameter within the WWW-Authenticate header itself, it could work

Regards,

Jeroen

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