V
Frame 19: 556 bytes on wire (4448 bits), 556 bytes captured (4448 bits)
Ethernet II, Src: Microsof_00:89:14 (00:15:5d:00:89:14), Dst: HuaweiTe_f2:8d:21 (f4:1d:6b:f2:8d:21)
Internet Protocol Version 4, Src: 192.168.24.15, Dst: 192.168.24.7
User Datagram Protocol, Src Port: 5160, Dst Port: 5060
Session Initiation Protocol (503)
Status-Line: SIP/2.0 503 Service Unavailable
Message Header
Via: SIP/2.0/UDP 192.168.24.7:5060;branch=z9hG4bK.q0DovuyT9;received=192.168.24.7;rport=5060
From: "999" <sip:999@192.168.24.15>;tag=zebOocKfC
To: sip:974441745@192.168.24.15;tag=as21116f07
Call-ID: KIBw8nvqG8
[Generated Call-ID: KIBw8nvqG8]
CSeq: 21 INVITE
Server: FPBX-15.0.17.24(16.15.1)
Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REFER, SUBSCRIBE, NOTIFY, INFO, PUBLISH, MESSAGE
Supported: replaces, timer
X-Asterisk-HangupCause: Subscriber absent
[Expert Info (Note/Undecoded): Unrecognised SIP header (x-asterisk-hangupcause)]
X-Asterisk-HangupCauseCode: 20
[Expert Info (Note/Undecoded): Unrecognised SIP header (x-asterisk-hangupcausecode)]
Content-Length: 0