MSG #405 2021-09-06 13:05:02.444

SIP 183 Session Progress message at 13:05:02.444

    SIP/2.0 183 Session Progress
    Via: SIP/2.0/UDP 192.168.2.3:5062;branch=z9hG4bK8765432109
    From: <sip:mcptt-server-A@mcstaasting.com>;tag=abc-INVITE-Fromtag
    To: <sip:PublicUserId-A@mcstaasting.com>;tag=424380976
    Contact: <sip:PublicUserId-A@192.168.3.2:49729;transport=udp>;+g.3gpp.mcptt;+g.3gpp.icsi-ref="urn%3Aurn-7%3A3gpp-service.ims.icsi.mcptt";audio;isfocus
    Call-ID: INVITE-1-7dec-11d0-a765-00a0c91e6bf6@192.168.2.3
    CSeq: 4711 INVITE
    Content-Length: 0
    Via: SIP/2.0/UDP mcstaasting.com:6543;branch=z9hG4bK7654321098
    Record-Route: <sip:192.168.2.3:5062;lr>
    Record-Route: <sip:term@scscf1.3gpp.org;lr>
    Record-Route: <sip:orig@scscf2.3gpp.org;lr>
    Record-Route: <sip:pcscf2.3gpp.org;lr>
    Require: timer
    Session-Expires: 1800;refresher=uas
    Require: 100rel
    RSeq: 615940396
    Supported: norefersub
    Allow: ACK, BYE, CANCEL, INVITE, MESSAGE, NOTIFY, OPTIONS, PRACK, REFER, UPDATE