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4.14 E911 INVITE

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This section follows the product behavior described in endnote <83>.

The following example shows an E911 INVITE that the client endpoint can send to establish an E911 call. This example excludes common required headers.

 INVITE sip:911;phone-context=Redmond@192.168.1.12;user=phone SIP/2.0
 From: "voip_911_user1"<sip:voip_911_user1@contoso.com>;epid=1D19090AED;tag=d04d65d924
 To: <sip:911;phone-context=Redmond@192.168.1.12;user=phone>
 CSeq: 8 INVITE
 Call-ID: e6828be1-1cdd-4fb0-bdda-cda7faf46df4
 VIA: SIP/2.0/TLS 192.168.0.244:57918;branch=z9hG4bK528b7ad7
 CONTACT: <sip:voip_911_user1@contoso.com;opaque=user:epid:R4bCDaUj51a06PUbkraS0QAA;gruu>;text;audio;video;image
 PRIORITY: emergency
 Supported: geolocation
 CONTENT-TYPE: multipart/mixed; boundary= ------=_NextPart_000_4A6D_01CAB3D6.7519F890
 geolocation: <cid:sip:voip_911_user1@contoso.com>;inserted-by="sip:voip_911_user1@contoso .com"
 Message-Body: 
 ------=_NextPart_000_4A6D_01CAB3D6.7519F890 
 Content-Type: application/sdp ; charset=utf-8
 v=0
 o=- 0 0 IN IP4 Client
 s=session
 c=IN IP4 Client
 t=0 0
 m=audio 30684 RTP/AVP 114 111 112 115 116 4 3 8 0 106 97
 c=IN IP4 172.29.105.23
 a=rtcp:60423
 a=label:Audio
 a=rtpmap:3 GSM/8000/1
 a=rtpmap:101 telephone-event/8000
 a=fmtp:101 0-16
 a=rtpmap:0 PCMU/8000
 a=rtpmap:8 PCMA/8000
 a=ptime:20
  
 ------=_NextPart_000_4A6D_01CAB3D6.7519F890 
 Content-Type: application/pidf+xml
 Content-ID: <voip_911_user1@contoso.com>
 <?xml version="1.0" encoding="utf-8"?>
 <presence xmlns="urn:ietf:params:xml:ns:pidf"
   xmlns:gp="urn:ietf:params:xml:ns:pidf:geopriv10"
   xmlns:bp="urn:ietf:params:xml:ns:pidf:geopriv10:basicPolicy"
   xmlns:ca="urn:ietf:params:xml:ns:pidf:geopriv10:civicAddr"
   xmlns:ms="urn:schema:Rtc.LIS.msftE911PidfExtn.2008"
   entity="sip:voip_911_user1@contoso.com">
   <tuple id="0">
     <status>
       <gp:geopriv>
         <gp:location-info>
           <ca:civicAddress>
             <ca:country>US</ca:country>
             <ca:A1>WA</ca:A1>
             <ca:A3>Redmond</ca:A3>
             <ca:RD>163rd</ca:RD>
             <ca:STS>Ave</ca:STS>
             <ca:POD>NE</ca:POD>
             <ca:HNO>3910</ca:HNO>
             <ca:LOC>40/4451</ca:LOC>
             <ca:NAM>Contoso Corporation </ca:NAM>
             <ca:PC>98052</ca:PC>
           </ca:civicAddress>
         </gp:location-info>
         <gp:usage-rules>
           <bp:retransmission-allowed>true</bp:retransmission-allowed>
         </gp:usage-rules>
       </gp:geopriv>
       <ms:msftE911PidfExtn>
         <ms:ConferenceUri>sip:+14255550199@contoso.com;user=phone
           </ms:ConferenceUri>
         <ms:ConferenceMode>twoway</ms:ConferenceMode>
         <LocationPolicyTagID xmlns="urn:schema:Rtc.Lis.LocationPolicyTagID.2008">user-tagid
           </LocationPolicyTagID >
       </ms:msftE911PidfExtn>
     </status>
     <timestamp>1991-09-22T13:37:31.03</timestamp>
   </tuple>
 </presence>
 ------=_NextPart_000_4A6D_01CAB3D6.7519F890--