[SR-Users] people complain Kamailio not handling stale nonce correctly

[Juha Heinanen]

Henning Westerholt writes:

> sounds like a good idea to me, we should integrate it to the default cfg.
> 
> Just a small comment, I think this would be match the current behaviour 
> more closely (only return stale=true, don't use qop=auth).
> 
> ! 			case -4:
> ! 				auth_challenge("$fd", 16);
> ! 				exit;

This change is fine.  Perhaps someone who has capability to run the
example config, could give the new version a try before commit?