Using PIDF-LO in emergency calls - Amazon Chime SDK

Using PIDF-LO in emergency calls

When you place emergency calls through a Voice Connector, you can send caller location information by including a GEOPRIV Presence Information Data Format Location Object (PIDF-LO) in your SIP requests. The object must include the Geolocation-Routing header, set to Yes. We strongly recommend validating the address If you don't validate the address, calls go to the national emergency call routing center, and help may take longer to arrive.

The following example shows a SIP invite with a PIDF-LO object that includes an address.

INVITE sip:911@abcdef1ghij2klmno3pqr4.voiceconnector.chime.aws;transport=TCP SIP/2.0
Via: SIP/2.0/TCP IPaddress:12345;rport;branch=z9hG4bKKXN2D41yvDUKH
From: +15105186683 ><sip:+15105186683@IPaddress:12345>;tag=tag
To: <sip:911@abcdef1ghij2klmno3pqr4.voiceconnector.chime.aws>;transport=TCP
Call-ID: 12abcdef-3456-7891-012g-h7i8j9k6l0a1
CSeq: 43615607 INVITE
Contact: <sip:IPaddress:12345>
Max-Forwards: 70
Geolocation-Routing: Yes
Geolocation: <cid:a1ef610291734f98a467b973819e90ed>;inserted-by=vpc@ng911.test.com
Content-Type: multipart/mixed;boundary=unique-boundarystring
Content-Length: 271
Accept: application/sdp, application/pidf+xml

--unique-boundarystring
Content-Type: application/sdp
v=0
o=FreeSWITCH 1636327400 1636327401 IN IP4 IPaddress
s=FreeSWITCH
c=IN IP4 IPaddress
t=0 0
m=audio 11398 RTP/SAVP 9 0 101
a=rtpmap:0 PCMU/8000
a=rtpmap:101 telephone-event/8000
a=fmtp:101 0-16
a=sendrecv
a=ptime:20

--unique-boundarystring
Content-Type: application/pidf+xml
Content-ID: <pidftest@test.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"
entity="sip:amazontest911@test.com">
<tuple id="0">
    <status>
    <gp:geopriv>
        <gp:location-info>
        <ca:civicAddress>
            <ca:country>US</ca:country>
            <ca:A1>WA</ca:A1>
            <ca:A3>Seattle</ca:A3>
            <ca:HNO>1812</ca:HNO>
            <ca:RD>Example</ca:RD>
            <ca:STS>Ave</ca:STS>
            <ca:NAM>Low Flying Turtle</ca:NAM>
            <ca:PC>98101</ca:PC>
        </ca:civicAddress>
        </gp:location-info>
    </gp:geopriv>
    </status>
    <timestamp>2021-09-22T13:37:31.03</timestamp>
</tuple>
</presence>
--unique-boundarystring--