I do not think the all capital header is valid according to rfc2617. But 
I saw at lease one vendor did this. (You and I probably are talking 
about the same vendor here.) What I did was just change strcmp to 
strcasecmp and it took care of it.

Regards,

Shan Lu

NexTone Communications

Ragunath Devarasu wrote:

> Greetings,
> 
> Is the following Header syntactically correct?
>  i.e, Can this param-name/Digest be CaseInsensitive.
> 
> Authorization: DIGEST USERNAME="1234", REALM="Registered Users",
> RESPONSE="5dc4d5096b7da48a1f2d1670615fe729", URI="sip:10.1.3.3" 
> 
> I know following is correct.
> Authorization: Digest username="1234", realm="Registered Users",
> response="5dc4d5096b7da48a1f2d1670615fe729", uri="sip:10.1.3.3" 
> 
> I had checked rfc2617.txt for clarification with no success.
> 
> Thanks,
> Ragunath.
> 
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