SIP/2.0 401 Unauthorized
;rport=5060Via: SIP/2.0/UDP 38.127.220.60;branch=z9hG4bK30a7.6bfa1ba.0
Via: SIP/2.0/UDP 192.168.10.138:5060;received=38.127.221.205;branch=z9hG4bK1415772445;rport=5060
From: "Javier Villars" <sip:ctk_gzefpldbwc@sip.hiqdata.net>;tag=670696527
To: <sip:ctk_gzefpldbwc@sip.hiqdata.net>;tag=c97b4d1cb1f3d0da549e06a8d482ef63.b19d
Call-ID: 634233067-5060-1
CSeq: 22168 REGISTER
WWW-Authenticate: Digest realm="sip.hiqdata.net", nonce="4e8b27250000043f415860895c95e52f8385f52dec6b8edc", stale=true
Server: Ozark 39923
Content-Length: 0