[asterisk-users] SSRC =0x0 in RTP
Harel Cohen
harel at mayorcom.com
Wed Nov 15 11:37:25 CST 2017
>
> Hi Joshua,
> Thank you for looking into this.
> Their response IS based on traces I've sent them. Attached is such trace
in text format (server IP has been changed to 111.111.111.111). Some
repeating RTP packets has been truncated.
You can see that after the 200 OK SSRC is sent from the server to the phone
as '0x0'. The same has happened with G729 codec.
> Let me know if you need the full trace or anything else from my side.
> I should also mention that this is Asterisk version 1.8.12.1
> Thank you
> Harel
> ------------------------------
>
On Tue, Nov 14, 2017, at 09:14 AM, Harel Cohen wrote:
> > Hello,
> > I have a problem where on an outgoing call a Grandstream phone
> > (GXP2130) closes the incoming voice stream about 1 second into the
> > call (the remote party hears the Grandstream, the Grandstream doesn't
> > hear thr remote party). I have verified with logs and traces that this
> > is not a NAT issue or any other network-related problem. All incoming
> > RTP packets arrive at the phone on the correct port etc. as declared in
the SDP.
> > I opened a ticket with Grandstream and they replied: "
> >
> > *the phone starts receiving RTP with SSRC =0x0 which is wrong".*
> >
> > Is this an Asterisk problem or the phones? Is this something that can
> > be fixed on the Asterisk side?
>
Asterisk would be sending the RTP to the Grandstream. I'd suggest getting a
packet capture using tcpdump or wireshark to confirm what they've said
though. I just looked at the code and I don't see a way that we'd ever have
the SSRC be 0.
>
Cheers,
>
--
> Joshua Colp
> Digium, Inc. | Senior Software Developer
> 445 Jan Davis Drive NW - Huntsville, AL 35806 - US Check us out at:
www.digium.com & www.asterisk.org
>
>
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No. Time Source Destination Protocol Length Info
1 0.000000 1224 <Ignored>
Frame 1: 1224 bytes on wire (9792 bits), 1224 bytes captured (9792 bits)
This frame is marked as ignored
No. Time Source Destination Protocol Length Info
2 0.078267 195.191.156.50 192.168.10.144 SIP 631 Status: 401 Unauthorized |
Frame 2: 631 bytes on wire (5048 bits), 631 bytes captured (5048 bits)
Ethernet II, Src: 00:ff:6b:60:2c:4c (00:ff:6b:60:2c:4c), Dst: Grandstr_a7:a0:fa (00:0b:82:a7:a0:fa)
802.1Q Virtual LAN, PRI: 0, DEI: 0, ID: 0
Internet Protocol Version 4, Src: 195.191.156.50, Dst: 192.168.10.144
User Datagram Protocol, Src Port: 55060, Dst Port: 21321
Session Initiation Protocol (401)
No. Time Source Destination Protocol Length Info
3 0.090271 192.168.10.144 195.191.156.50 SIP 431 Request: ACK sip:0035699143960 at sip1.mayorcom.com:55060 |
Frame 3: 431 bytes on wire (3448 bits), 431 bytes captured (3448 bits)
Ethernet II, Src: Grandstr_a7:a0:fa (00:0b:82:a7:a0:fa), Dst: 00:ff:6b:60:2c:4c (00:ff:6b:60:2c:4c)
Internet Protocol Version 4, Src: 192.168.10.144, Dst: 195.191.156.50
User Datagram Protocol, Src Port: 21321, Dst Port: 55060
Session Initiation Protocol (ACK)
No. Time Source Destination Protocol Length Info
4 0.120599 192.168.10.144 195.191.156.50 SIP/SDP 1427 Request: INVITE sip:0035699143960 at sip1.mayorcom.com:55060 |
Frame 4: 1427 bytes on wire (11416 bits), 1427 bytes captured (11416 bits)
Ethernet II, Src: Grandstr_a7:a0:fa (00:0b:82:a7:a0:fa), Dst: 00:ff:6b:60:2c:4c (00:ff:6b:60:2c:4c)
Internet Protocol Version 4, Src: 192.168.10.144, Dst: 195.191.156.50
User Datagram Protocol, Src Port: 21321, Dst Port: 55060
Session Initiation Protocol (INVITE)
No. Time Source Destination Protocol Length Info
5 0.200309 195.191.156.50 192.168.10.144 SIP 576 Status: 100 Trying |
Frame 5: 576 bytes on wire (4608 bits), 576 bytes captured (4608 bits)
Ethernet II, Src: 00:ff:6b:60:2c:4c (00:ff:6b:60:2c:4c), Dst: Grandstr_a7:a0:fa (00:0b:82:a7:a0:fa)
802.1Q Virtual LAN, PRI: 0, DEI: 0, ID: 0
Internet Protocol Version 4, Src: 195.191.156.50, Dst: 192.168.10.144
User Datagram Protocol, Src Port: 55060, Dst Port: 21321
Session Initiation Protocol (100)
No. Time Source Destination Protocol Length Info
6 1.742472 195.191.156.50 192.168.10.144 SIP/SDP 883 Status: 183 Session Progress |
Frame 6: 883 bytes on wire (7064 bits), 883 bytes captured (7064 bits)
Ethernet II, Src: 00:ff:6b:60:2c:4c (00:ff:6b:60:2c:4c), Dst: Grandstr_a7:a0:fa (00:0b:82:a7:a0:fa)
802.1Q Virtual LAN, PRI: 0, DEI: 0, ID: 0
Internet Protocol Version 4, Src: 195.191.156.50, Dst: 192.168.10.144
User Datagram Protocol, Src Port: 55060, Dst Port: 21321
Session Initiation Protocol (183)
No. Time Source Destination Protocol Length Info
7 1.930997 192.168.10.144 195.191.156.50 RTP 214 PT=ITU-T G.711 PCMA, SSRC=0x254908E, Seq=39013, Time=3930400, Mark
Frame 7: 214 bytes on wire (1712 bits), 214 bytes captured (1712 bits)
Ethernet II, Src: Grandstr_a7:a0:fa (00:0b:82:a7:a0:fa), Dst: 00:ff:6b:60:2c:4c (00:ff:6b:60:2c:4c)
Internet Protocol Version 4, Src: 192.168.10.144, Dst: 195.191.156.50
User Datagram Protocol, Src Port: 57514, Dst Port: 14520
Real-Time Transport Protocol
No. Time Source Destination Protocol Length Info
8 2.022842 195.191.156.50 192.168.10.144 RTP 218 PT=ITU-T G.711 PCMA, SSRC=0x146F3B81, Seq=16905, Time=718143728
Frame 8: 218 bytes on wire (1744 bits), 218 bytes captured (1744 bits)
Ethernet II, Src: 00:ff:6b:60:2c:4c (00:ff:6b:60:2c:4c), Dst: Grandstr_a7:a0:fa (00:0b:82:a7:a0:fa)
802.1Q Virtual LAN, PRI: 0, DEI: 0, ID: 0
Internet Protocol Version 4, Src: 195.191.156.50, Dst: 192.168.10.144
User Datagram Protocol, Src Port: 14520, Dst Port: 57514
Real-Time Transport Protocol
No. Time Source Destination Protocol Length Info
9 5.568285 192.168.10.144 195.191.156.50 RTP 214 PT=ITU-T G.711 PCMA, SSRC=0x254908E, Seq=39195, Time=3959520
Frame 9: 214 bytes on wire (1712 bits), 214 bytes captured (1712 bits)
Ethernet II, Src: Grandstr_a7:a0:fa (00:0b:82:a7:a0:fa), Dst: 00:ff:6b:60:2c:4c (00:ff:6b:60:2c:4c)
Internet Protocol Version 4, Src: 192.168.10.144, Dst: 195.191.156.50
User Datagram Protocol, Src Port: 57514, Dst Port: 14520
Real-Time Transport Protocol
No. Time Source Destination Protocol Length Info
38 5.862609 195.191.156.50 192.168.10.144 RTP 218 PT=ITU-T G.711 PCMA, SSRC=0x146F3B81, Seq=17097, Time=718174448
Frame 38: 218 bytes on wire (1744 bits), 218 bytes captured (1744 bits)
Ethernet II, Src: 00:ff:6b:60:2c:4c (00:ff:6b:60:2c:4c), Dst: Grandstr_a7:a0:fa (00:0b:82:a7:a0:fa)
802.1Q Virtual LAN, PRI: 0, DEI: 0, ID: 0
Internet Protocol Version 4, Src: 195.191.156.50, Dst: 192.168.10.144
User Datagram Protocol, Src Port: 14520, Dst Port: 57514
Real-Time Transport Protocol
No. Time Source Destination Protocol Length Info
39 5.870949 192.168.10.144 195.191.156.50 RTP 214 PT=ITU-T G.711 PCMA, SSRC=0x254908E, Seq=39210, Time=3961920
Frame 39: 214 bytes on wire (1712 bits), 214 bytes captured (1712 bits)
Ethernet II, Src: Grandstr_a7:a0:fa (00:0b:82:a7:a0:fa), Dst: 00:ff:6b:60:2c:4c (00:ff:6b:60:2c:4c)
Internet Protocol Version 4, Src: 192.168.10.144, Dst: 195.191.156.50
User Datagram Protocol, Src Port: 57514, Dst Port: 14520
Real-Time Transport Protocol
No. Time Source Destination Protocol Length Info
40 5.883135 195.191.156.50 192.168.10.144 RTP 218 PT=ITU-T G.711 PCMA, SSRC=0x146F3B81, Seq=17098, Time=718174608
Frame 40: 218 bytes on wire (1744 bits), 218 bytes captured (1744 bits)
Ethernet II, Src: 00:ff:6b:60:2c:4c (00:ff:6b:60:2c:4c), Dst: Grandstr_a7:a0:fa (00:0b:82:a7:a0:fa)
802.1Q Virtual LAN, PRI: 0, DEI: 0, ID: 0
Internet Protocol Version 4, Src: 195.191.156.50, Dst: 192.168.10.144
User Datagram Protocol, Src Port: 14520, Dst Port: 57514
Real-Time Transport Protocol
No. Time Source Destination Protocol Length Info
41 5.889643 195.191.156.50 192.168.10.144 SIP/SDP 869 Status: 200 OK |
Frame 41: 869 bytes on wire (6952 bits), 869 bytes captured (6952 bits)
Ethernet II, Src: 00:ff:6b:60:2c:4c (00:ff:6b:60:2c:4c), Dst: Grandstr_a7:a0:fa (00:0b:82:a7:a0:fa)
802.1Q Virtual LAN, PRI: 0, DEI: 0, ID: 0
Internet Protocol Version 4, Src: 195.191.156.50, Dst: 192.168.10.144
User Datagram Protocol, Src Port: 55060, Dst Port: 21321
Session Initiation Protocol (200)
No. Time Source Destination Protocol Length Info
42 5.889846 192.168.10.144 195.191.156.50 RTP 214 PT=ITU-T G.711 PCMA, SSRC=0x254908E, Seq=39211, Time=3962080
Frame 42: 214 bytes on wire (1712 bits), 214 bytes captured (1712 bits)
Ethernet II, Src: Grandstr_a7:a0:fa (00:0b:82:a7:a0:fa), Dst: 00:ff:6b:60:2c:4c (00:ff:6b:60:2c:4c)
Internet Protocol Version 4, Src: 192.168.10.144, Dst: 195.191.156.50
User Datagram Protocol, Src Port: 57514, Dst Port: 14520
Real-Time Transport Protocol
No. Time Source Destination Protocol Length Info
43 5.903619 195.191.156.50 192.168.10.144 RTP 218 PT=ITU-T G.711 PCMA, SSRC=0x0, Seq=32665, Time=718174772, Mark
Frame 43: 218 bytes on wire (1744 bits), 218 bytes captured (1744 bits)
Ethernet II, Src: 00:ff:6b:60:2c:4c (00:ff:6b:60:2c:4c), Dst: Grandstr_a7:a0:fa (00:0b:82:a7:a0:fa)
802.1Q Virtual LAN, PRI: 0, DEI: 0, ID: 0
Internet Protocol Version 4, Src: 195.191.156.50, Dst: 192.168.10.144
User Datagram Protocol, Src Port: 14520, Dst Port: 57514
Real-Time Transport Protocol
No. Time Source Destination Protocol Length Info
44 5.912239 192.168.10.144 195.191.156.50 RTP 214 PT=ITU-T G.711 PCMA, SSRC=0x254908E, Seq=39212, Time=3962240
Frame 44: 214 bytes on wire (1712 bits), 214 bytes captured (1712 bits)
Ethernet II, Src: Grandstr_a7:a0:fa (00:0b:82:a7:a0:fa), Dst: 00:ff:6b:60:2c:4c (00:ff:6b:60:2c:4c)
Internet Protocol Version 4, Src: 192.168.10.144, Dst: 195.191.156.50
User Datagram Protocol, Src Port: 57514, Dst Port: 14520
Real-Time Transport Protocol
No. Time Source Destination Protocol Length Info
51 5.982884 195.191.156.50 192.168.10.144 RTP 218 PT=ITU-T G.711 PCMA, SSRC=0x0, Seq=32669, Time=718175412
Frame 51: 218 bytes on wire (1744 bits), 218 bytes captured (1744 bits)
Ethernet II, Src: 00:ff:6b:60:2c:4c (00:ff:6b:60:2c:4c), Dst: Grandstr_a7:a0:fa (00:0b:82:a7:a0:fa)
802.1Q Virtual LAN, PRI: 0, DEI: 0, ID: 0
Internet Protocol Version 4, Src: 195.191.156.50, Dst: 192.168.10.144
User Datagram Protocol, Src Port: 14520, Dst Port: 57514
Real-Time Transport Protocol
No. Time Source Destination Protocol Length Info
52 5.993549 192.168.10.144 195.191.156.50 RTP 214 PT=ITU-T G.711 PCMA, SSRC=0x254908E, Seq=39216, Time=3962880
Frame 52: 214 bytes on wire (1712 bits), 214 bytes captured (1712 bits)
Ethernet II, Src: Grandstr_a7:a0:fa (00:0b:82:a7:a0:fa), Dst: 00:ff:6b:60:2c:4c (00:ff:6b:60:2c:4c)
Internet Protocol Version 4, Src: 192.168.10.144, Dst: 195.191.156.50
User Datagram Protocol, Src Port: 57514, Dst Port: 14520
Real-Time Transport Protocol
No. Time Source Destination Protocol Length Info
53 5.993605 192.168.10.144 195.191.156.50 RTCP 54 Goodbye
Frame 53: 54 bytes on wire (432 bits), 54 bytes captured (432 bits)
Ethernet II, Src: Grandstr_a7:a0:fa (00:0b:82:a7:a0:fa), Dst: 00:ff:6b:60:2c:4c (00:ff:6b:60:2c:4c)
Internet Protocol Version 4, Src: 192.168.10.144, Dst: 195.191.156.50
User Datagram Protocol, Src Port: 57515, Dst Port: 14521
Real-time Transport Control Protocol (Goodbye)
[RTCP frame length check: OK - 12 bytes]
No. Time Source Destination Protocol Length Info
54 6.002662 195.191.156.50 192.168.10.144 RTP 218 PT=ITU-T G.711 PCMA, SSRC=0x0, Seq=32670, Time=718175572
Frame 54: 218 bytes on wire (1744 bits), 218 bytes captured (1744 bits)
Ethernet II, Src: 00:ff:6b:60:2c:4c (00:ff:6b:60:2c:4c), Dst: Grandstr_a7:a0:fa (00:0b:82:a7:a0:fa)
802.1Q Virtual LAN, PRI: 0, DEI: 0, ID: 0
Internet Protocol Version 4, Src: 195.191.156.50, Dst: 192.168.10.144
User Datagram Protocol, Src Port: 14520, Dst Port: 57514
Real-Time Transport Protocol
No. Time Source Destination Protocol Length Info
55 6.022826 195.191.156.50 192.168.10.144 RTP 218 PT=ITU-T G.711 PCMA, SSRC=0x0, Seq=32671, Time=718175732
Frame 55: 218 bytes on wire (1744 bits), 218 bytes captured (1744 bits)
Ethernet II, Src: 00:ff:6b:60:2c:4c (00:ff:6b:60:2c:4c), Dst: Grandstr_a7:a0:fa (00:0b:82:a7:a0:fa)
802.1Q Virtual LAN, PRI: 0, DEI: 0, ID: 0
Internet Protocol Version 4, Src: 195.191.156.50, Dst: 192.168.10.144
User Datagram Protocol, Src Port: 14520, Dst Port: 57514
Real-Time Transport Protocol
No. Time Source Destination Protocol Length Info
56 6.042641 195.191.156.50 192.168.10.144 RTP 218 PT=ITU-T G.711 PCMA, SSRC=0x0, Seq=32672, Time=718175892
Frame 56: 218 bytes on wire (1744 bits), 218 bytes captured (1744 bits)
Ethernet II, Src: 00:ff:6b:60:2c:4c (00:ff:6b:60:2c:4c), Dst: Grandstr_a7:a0:fa (00:0b:82:a7:a0:fa)
802.1Q Virtual LAN, PRI: 0, DEI: 0, ID: 0
Internet Protocol Version 4, Src: 195.191.156.50, Dst: 192.168.10.144
User Datagram Protocol, Src Port: 14520, Dst Port: 57514
Real-Time Transport Protocol
No. Time Source Destination Protocol Length Info
57 6.062909 195.191.156.50 192.168.10.144 RTP 218 PT=ITU-T G.711 PCMA, SSRC=0x0, Seq=32673, Time=718176052
Frame 57: 218 bytes on wire (1744 bits), 218 bytes captured (1744 bits)
Ethernet II, Src: 00:ff:6b:60:2c:4c (00:ff:6b:60:2c:4c), Dst: Grandstr_a7:a0:fa (00:0b:82:a7:a0:fa)
802.1Q Virtual LAN, PRI: 0, DEI: 0, ID: 0
Internet Protocol Version 4, Src: 195.191.156.50, Dst: 192.168.10.144
User Datagram Protocol, Src Port: 14520, Dst Port: 57514
Real-Time Transport Protocol
No. Time Source Destination Protocol Length Info
58 6.082884 195.191.156.50 192.168.10.144 RTP 218 PT=ITU-T G.711 PCMA, SSRC=0x0, Seq=32674, Time=718176212
Frame 58: 218 bytes on wire (1744 bits), 218 bytes captured (1744 bits)
Ethernet II, Src: 00:ff:6b:60:2c:4c (00:ff:6b:60:2c:4c), Dst: Grandstr_a7:a0:fa (00:0b:82:a7:a0:fa)
802.1Q Virtual LAN, PRI: 0, DEI: 0, ID: 0
Internet Protocol Version 4, Src: 195.191.156.50, Dst: 192.168.10.144
User Datagram Protocol, Src Port: 14520, Dst Port: 57514
Real-Time Transport Protocol
No. Time Source Destination Protocol Length Info
59 6.102631 195.191.156.50 192.168.10.144 RTP 218 PT=ITU-T G.711 PCMA, SSRC=0x0, Seq=32675, Time=718176372
Frame 59: 218 bytes on wire (1744 bits), 218 bytes captured (1744 bits)
Ethernet II, Src: 00:ff:6b:60:2c:4c (00:ff:6b:60:2c:4c), Dst: Grandstr_a7:a0:fa (00:0b:82:a7:a0:fa)
802.1Q Virtual LAN, PRI: 0, DEI: 0, ID: 0
Internet Protocol Version 4, Src: 195.191.156.50, Dst: 192.168.10.144
User Datagram Protocol, Src Port: 14520, Dst Port: 57514
Real-Time Transport Protocol
No. Time Source Destination Protocol Length Info
60 6.119574 192.168.10.144 195.191.156.50 SIP 648 Request: ACK sip:0035699143960 at 195.191.156.50:55060 |
Frame 60: 648 bytes on wire (5184 bits), 648 bytes captured (5184 bits)
Ethernet II, Src: Grandstr_a7:a0:fa (00:0b:82:a7:a0:fa), Dst: 00:ff:6b:60:2c:4c (00:ff:6b:60:2c:4c)
Internet Protocol Version 4, Src: 192.168.10.144, Dst: 195.191.156.50
User Datagram Protocol, Src Port: 21321, Dst Port: 55060
Session Initiation Protocol (ACK)
No. Time Source Destination Protocol Length Info
61 6.122854 195.191.156.50 192.168.10.144 RTP 218 PT=ITU-T G.711 PCMA, SSRC=0x0, Seq=32676, Time=718176532
Frame 61: 218 bytes on wire (1744 bits), 218 bytes captured (1744 bits)
Ethernet II, Src: 00:ff:6b:60:2c:4c (00:ff:6b:60:2c:4c), Dst: Grandstr_a7:a0:fa (00:0b:82:a7:a0:fa)
802.1Q Virtual LAN, PRI: 0, DEI: 0, ID: 0
Internet Protocol Version 4, Src: 195.191.156.50, Dst: 192.168.10.144
User Datagram Protocol, Src Port: 14520, Dst Port: 57514
Real-Time Transport Protocol
No. Time Source Destination Protocol Length Info
62 6.146394 195.191.156.50 192.168.10.144 RTP 218 PT=ITU-T G.711 PCMA, SSRC=0x0, Seq=32677, Time=718176692
Frame 62: 218 bytes on wire (1744 bits), 218 bytes captured (1744 bits)
Ethernet II, Src: 00:ff:6b:60:2c:4c (00:ff:6b:60:2c:4c), Dst: Grandstr_a7:a0:fa (00:0b:82:a7:a0:fa)
802.1Q Virtual LAN, PRI: 0, DEI: 0, ID: 0
Internet Protocol Version 4, Src: 195.191.156.50, Dst: 192.168.10.144
User Datagram Protocol, Src Port: 14520, Dst Port: 57514
Real-Time Transport Protocol
No. Time Source Destination Protocol Length Info
69 6.282889 195.191.156.50 192.168.10.144 RTP 218 PT=ITU-T G.711 PCMA, SSRC=0x0, Seq=32684, Time=718177812
Frame 69: 218 bytes on wire (1744 bits), 218 bytes captured (1744 bits)
Ethernet II, Src: 00:ff:6b:60:2c:4c (00:ff:6b:60:2c:4c), Dst: Grandstr_a7:a0:fa (00:0b:82:a7:a0:fa)
802.1Q Virtual LAN, PRI: 0, DEI: 0, ID: 0
Internet Protocol Version 4, Src: 195.191.156.50, Dst: 192.168.10.144
User Datagram Protocol, Src Port: 14520, Dst Port: 57514
Real-Time Transport Protocol
No. Time Source Destination Protocol Length Info
70 6.302859 195.191.156.50 192.168.10.144 RTP 218 PT=ITU-T G.711 PCMA, SSRC=0x0, Seq=32685, Time=718177972
Frame 70: 218 bytes on wire (1744 bits), 218 bytes captured (1744 bits)
Ethernet II, Src: 00:ff:6b:60:2c:4c (00:ff:6b:60:2c:4c), Dst: Grandstr_a7:a0:fa (00:0b:82:a7:a0:fa)
802.1Q Virtual LAN, PRI: 0, DEI: 0, ID: 0
Internet Protocol Version 4, Src: 195.191.156.50, Dst: 192.168.10.144
User Datagram Protocol, Src Port: 14520, Dst Port: 57514
Real-Time Transport Protocol
No. Time Source Destination Protocol Length Info
71 6.322867 195.191.156.50 192.168.10.144 RTP 218 PT=ITU-T G.711 PCMA, SSRC=0x0, Seq=32686, Time=718178132
Frame 71: 218 bytes on wire (1744 bits), 218 bytes captured (1744 bits)
Ethernet II, Src: 00:ff:6b:60:2c:4c (00:ff:6b:60:2c:4c), Dst: Grandstr_a7:a0:fa (00:0b:82:a7:a0:fa)
802.1Q Virtual LAN, PRI: 0, DEI: 0, ID: 0
Internet Protocol Version 4, Src: 195.191.156.50, Dst: 192.168.10.144
User Datagram Protocol, Src Port: 14520, Dst Port: 57514
Real-Time Transport Protocol
No. Time Source Destination Protocol Length Info
72 14.692623 195.191.156.50 192.168.10.144 SIP 730 Request: BYE sip:000B82A7A0FA_1 at 81.63.183.29:21321 |
Frame 72: 730 bytes on wire (5840 bits), 730 bytes captured (5840 bits)
Ethernet II, Src: 00:ff:6b:60:2c:4c (00:ff:6b:60:2c:4c), Dst: Grandstr_a7:a0:fa (00:0b:82:a7:a0:fa)
802.1Q Virtual LAN, PRI: 0, DEI: 0, ID: 0
Internet Protocol Version 4, Src: 195.191.156.50, Dst: 192.168.10.144
User Datagram Protocol, Src Port: 55060, Dst Port: 21321
Session Initiation Protocol (BYE)
No. Time Source Destination Protocol Length Info
73 14.730392 192.168.10.144 195.191.156.50 SIP 650 Status: 200 OK |
Frame 73: 650 bytes on wire (5200 bits), 650 bytes captured (5200 bits)
Ethernet II, Src: Grandstr_a7:a0:fa (00:0b:82:a7:a0:fa), Dst: 00:ff:6b:60:2c:4c (00:ff:6b:60:2c:4c)
Internet Protocol Version 4, Src: 192.168.10.144, Dst: 195.191.156.50
User Datagram Protocol, Src Port: 21321, Dst Port: 55060
Session Initiation Protocol (200)
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