hi there i got this error on my incoming how do i fix them? thanks
<-- SIP read from 67.15.128.18:5060:
ACK sip:390691657829@philserver.serveftp.net SIP/2.0
Via: SIP/2.0/UDP 67.15.128.18:5060;branch=z9hG4bK2ad9a5c4;rport
From: "Unavailable" <sip:Restricted@67.15.128.18>;tag=as5f884f05
To: <sip:390691657829@philserver.serveftp.net>;tag=as19681263
Contact: <sip:Restricted@67.15.128.18>
Call-ID: 5a8ffb3b1f6a28481d3de2a90154364f@67.15.128.18
CSeq: 102 ACK
User-Agent: sip2.didx.net
Max-Forwards: 70
Remote-Party-ID: "Unavailable" <sip:Restricted@67.15.128.18>;privacy=off;screen=no
Content-Length: 0