1.    INVITE sip:+18774869273@node1.nga911.com SIP/2.0
2.    Record-Route: <sip:10.0.9.39;r2=on;lr=on;ftag=XiVYmZJsW4P-Nf5vuB-MTUV-1wUEwdrV>
3.    Record-Route: <sip:52.42.195.203;transport=tcp;r2=on;lr=on;ftag=XiVYmZJsW4P-Nf5vuB-MTUV-1wUEwdrV>
4.    Via: SIP/2.0/UDP 10.0.9.39;branch=z9hG4bKae12.86ae62a9755a56cf01603014a542c2c0.0;i=552
5.    Via: SIP/2.0/TCP 109.252.15.247:8133;received=109.252.15.247;rport=8133;branch=z9hG4bKPjNdIwM6jY72GgOcgf-P.facIRJfT5VpS2;alias
6.    Max-Forwards: 50
7.    From: "safarov2" <sip:safarov2@node1.nga911.com>;tag=XiVYmZJsW4P-Nf5vuB-MTUV-1wUEwdrV
8.    To: <sip:+18774869273@node1.nga911.com>
9.    Contact: "safarov2" <sip:safarov2@109.252.15.247:8133;transport=TCP;ob>
10.    Call-ID: uHNYvZ7uFygifHUaIPO1w.HwjA9DMWgG
11.    CSeq: 3713 INVITE
12.    Route: <sip:node14.docker.nga911.com;transport=tcp;lr>
13.   Allow: PRACK, INVITE, ACK, BYE, CANCEL, UPDATE, INFO, SUBSCRIBE, NOTIFY, REFER, MESSAGE, OPTIONS
14.    Supported: replaces, 100rel, timer, norefersub
15.    Session-Expires: 1800
16.    Min-SE: 90
17.    User-Agent: phone.systems 1.0.2
18.    Content-Type: application/sdp
19.    Content-Length:   544
20.    X-AUTH-IP: 109.252.15.247
21.    X-AUTH-PORT: 8133
22.