MSG #459 2022-08-09 08:48:13.557

SIP REFER message at 08:48:13.557

    REFER sip:sessionB@cf.mcstaasting.com SIP/2.0
    Via: SIP/2.0/UDP 192.168.3.2:40638;branch=z9hG4bK-361051102;rport
    From: <sip:PublicUserId-A@mcstaasting.com>;tag=504671789
    To: <sip:mcptt-server-A@mcstaasting.com>
    Contact: <sip:PublicUserId-A@192.168.3.2:40638;transport=udp>;+g.3gpp.mcptt;+g.3gpp.icsi-ref="urn%3Aurn-7%3A3gpp-service.ims.icsi.mcptt";audio;text;+g.3gpp.mcdata;+g.3gpp.icsi-ref="urn%3Aurn-7%3A3gpp-service.ims.icsi.mcdata";+g.3gpp.mcdata.sds;+g.3gpp.icsi-ref="urn%3Aurn-7%3A3gpp-service.ims.icsi.mcdata.sds"
    Call-ID: 3147d49d-4274-1dab-83f8-640f7047d9dc
    CSeq: 1580739989 REFER
    Content-Length: 0
    Max-Forwards: 70
    Route: <sip:192.168.2.3:5062;lr>
    Route: <sip:scscf.3gpp.org;lr>
    Allow: INVITE, ACK, CANCEL, BYE, MESSAGE, OPTIONS, NOTIFY, PRACK, UPDATE, REFER
    Privacy: none
    P-Access-Network-Info: 3GPP-E-UTRAN-FDD;utran-cell-id-3gpp=0000000000000000
    User-Agent: MCS CLIENT SDK Nemergent 1.0 /v 7.2.6
    P-Preferred-Identity: <sip:PublicUserId-A@mcstaasting.com>
    Refer-Sub: false
    Require: multiple-refer
    Target-Dialog: 9cf24027-3154-2224-8b8d-0acc0615bdb9;local-tag=1745727775;remote-tag=abc-INVITE-Totag
    Accept-Contact: *;+g.3gpp.mcptt;require;explicit,*;+g.3gpp.icsi-ref="urn%3Aurn-7%3A3gpp-service.ims.icsi.mcptt";require;explicit
    Refer-To: <sip:sessionB@cf.mcstaasting.com;method=BYE>
    Supported: norefersub
    P-Preferred-Service: urn:urn-7:3gpp-service.ims.icsi.mcptt
    Security-Client: ipsec-3gpp;alg=hmac-sha-1-96;ealg=aes-cbc;prot=esp;mod=trans;spi-c=1896732951;spi-s=1796310370;port-c=43410;port-s=40638;q=0.9
    Security-Verify: ipsec-3gpp;alg=hmac-sha-1-96;ealg=aes-cbc;spi-c=257;spi-s=256;port-c=5061;port-s=5062;q=0.9
    Security-Verify: ipsec-3gpp;alg=hmac-md5-96;ealg=aes-cbc;spi-c=257;spi-s=256;port-c=5061;port-s=5062;q=0.7
    Require: sec-agree
    Proxy-Require: sec-agree