URIsip:+1234567890@example.com;u=w
Scheme (Protocol)SIP
Authority+1234567890@example.com
User+1234567890
Host example.com   !dns !rdap !whois !dnstrace !bl !bl-slow !g !gsec
Default Protocol Port5060   !port
SIP Parametersu=w
RFC [ RFC3986, ^ ]
[ RFC3261, ^ ]
  
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      /IPduhURIdec9I\