[OpenSER-Users] Doesn't "proxy_authorize()" allow credentials if "From" == "Anonymous" <sip:anonymous@anonymous.invalid> ?

Hi, when I do a call with hiddn callerid from my Twinkle it sends an INVITE with: ----------- INVITE sip:1414@my_domain.net SIP/2.0 From: "Anonymous" <sip:anonymous@anonymous.invalid>;tag=emirn Privacy: id P-Preferred-Identity: "IBC" <sip:ibc@my_domain.net> ----------- and of course my Openser asks Twinkle for authentication: ----------- SIP/2.0 407 Proxy Authentication Required Proxy-Authenticate: Digest realm="my_domain.net", nonce="4838005d57e5ee0a1f96430d63696fe1407ef93e", qop="auth" ----------- and I see the $rc code of "proxy-authentication()" is -4 (no credentials). So my Twinkle sends a correct INVITE (CSeq + 1 and "Proxy-Authorization" header): ----------- INVITE sip:1414@my_domain.net SIP/2.0 From: "Anonymous" <sip:anonymous@anonymous.invalid>;tag=emirn Privacy: id P-Preferred-Identity: "IBC" <sip:ibc@my_domain.net> Proxy-Authorization: Digest username="ibc", realm="mt_domain.net", nonce="4838005d57e5ee0a1f96430d63696fe1407ef93e", uri="sip:1414@my_domain.net", response="061d82967778669a01e53d168f2da93b", algorithm=MD5, cnonce="9n7ln49l46", qop=auth, nc=00000001 ----------- But "proxy-authentication()" replies again with -4 (no credentials). ----------- SIP/2.0 407 Proxy Authentication Required Proxy-Authenticate: Digest realm="my_domain.net", nonce="4838005d57e5ee0a1f96430d63696fe1407ef93e", qop="auth" ----------- Why? Obviously the INVITE **does include** Proxy-Authorization. Maybe RC3261 says that a server must not challenge for authentication a user with From "Anonymous" <sip:anonymous@anonymous.invalid> ? Of course authentication works properly when not hidding callerid. Thanks for any explanation. -- Iñaki Baz Castillo ibc(a)in.ilimit.es