Dropping Calls

We seems to be having a wierd problem with our Asterisk server. Asterisk is running ona quad core dell server with 16gb of ram. From time to time users get dropped from out going calls after 20 seconds. If we leave the server for around 20-30 ins it resolves it’s self.

We have a session border controller as well as apf firewall, fail2ban and ossec. We see no signes of being hacked and traces seem to show larger amounts of rtp traffic and calls seem to be droped by our server and not our supplier or caller.

Can anyone one give me any clues on this 1

Thanks

Glenn

Hi

with no sip trace, no configs and no verbose output , bit hard to say really,

This machine is running asterisk via a2biling if it’s relevant

How do i upload a sip trace. This 20 second call is 1834 pages long

[quote]This 20 second call is 1834 pages long[/quote] !!!

download the pdf here cyber-cottage.co.uk/site/index.p … &Itemid=63 and follow the instructions on tracing just the signalling as it seems you are doing something wrong.

Anyway the verbose output of a call can be posted directly here(with IPs changed)

and when you have a wireschark trace this will give you a neat graphical flow of the signalling

Ian

Thanks for your advise. I need to catch 1 of these calls. I have filtered the last sip call that was wrong to give some info

Conv.| Time | 77.55.78.164 | 13.66.5.149 |
| | | 68.89.62.194 | | 213.166.5.177 |
0 |1.371 | INVITE SDP (g711A g711U GSM telephone-eventRTP…e-101 CN) | | |SIP From: “Collins” <sip:7231615639@sip.test.co.uk;transport=udp To:<sip:077996334455@sip.test.co.uk
| |(5080) ------------------> (5060) | | |
0 |1.371 | 401 Unauthorized | | |SIP Status
| |(5080) <------------------ (5060) | | |
0 |1.404 | ACK | | | |SIP Request
| |(5080) ------------------> (5060) | | |
0 |1.416 | INVITE SDP (g711A g711U GSM telephone-eventRTP…e-101 CN) | | |SIP From: “Collins” <sip:7231615639@sip.test.co.uk;transport=udp To:<sip:077996334455@sip.test.co.uk
| |(5080) ------------------> (5060) | | |
0 |1.417 | 100 Trying| | | |SIP Status
| |(5080) <------------------ (5060) | | |

1 |1.574 | | INVITE SDP (g711A) | |SIP From: “Collins” <sip:01825667788@68.89.62.194 To:<sip:4477996334455@sip.supplier.co.uk
| | |(5060) ------------------> (5060) | |
1 |1.581 | | 407 Proxy Authentication Required | |SIP Status
| | |(5060) <------------------ (5060) | |
1 |1.581 | | ACK | | |SIP Request
| | |(5060) ------------------> (5060) | |
1 |1.581 | | INVITE SDP (g711A) | |SIP From: “Collins” <sip:01825667788@68.89.62.194 To:<sip:4477996334455@sip.supplier.co.uk
| | |(5060) ------------------> (5060) | |
1 |1.589 | | 100 Giving a try | |SIP Status
| | |(5060) <------------------ (5060) | |
1 |1.990 | | RTP (g711A) | |RTP Num packets:1387 Duration:27.720s SSRC:0xF04E379
| | |(16116) <-------------------------------------- (42014) |
1 |7.056 | | 183 Session Progress SDP (g711A) | |SIP Status
| | |(5060) <------------------ (5060) | |

0 |7.056 | 183 Session Progress SDP (g711A g711U telephon…ventRTPType-101) | | |SIP Status
| |(5080) <------------------ (5060) | | |
0 |7.070 | RTP (g711A) | | |RTP Num packets:133 Duration:2.639s SSRC:0x773ACC
| |(32646) <------------------ (16646) | | |
0 |7.222 | RTP (g711A) | | |RTP Num packets:124 Duration:2.476s SSRC:0xF8E95719
| |(32646) ------------------> (16646) | | |

1 |7.222 | | RTP (g711A) | |RTP Num packets:124 Duration:2.476s SSRC:0x310E0408
| | |(16116) --------------------------------------> (42014) |
1 |9.712 | | 200 OK SDP (g711A) | |SIP Status
| | |(5060) <------------------ (5060) | |
1 |9.712 | | ACK | | |SIP Request
| | |(5060) ------------------> (5060) | |

0 |9.712 | 200 OK SDP (g711A g711U telephone-eventRTPType-101) | | |SIP Status
| |(5080) <------------------ (5060) | | |
0 |9.722 | RTP (g711A) | | |RTP Num packets:44 Duration:0.978s SSRC:0xF8E95719
| |(32646) ------------------> (16646) | | |

1 |9.722 | | RTP (g711A) | |RTP Num packets:992 Duration:19.977s SSRC:0x31230730
| | |(16116) --------------------------------------> (42014) |

0 |9.730 | RTP (g711A) | | |RTP Num packets:1000 Duration:19.980s SSRC:0x171A6002
| |(32646) <------------------ (16646) | | |
0 |10.712 | 200 OK SDP (g711A g711U telephone-eventRTPType-101) | | |SIP Status
| |(5080) <------------------ (5060) | | |
0 |10.720 | RTP (g711A) | | |RTP Num packets:50 Duration:0.980s SSRC:0xF8E95719
| |(32646) ------------------> (16646) | | |
0 |11.712 | 200 OK SDP (g711A g711U telephone-eventRTPType-101) | | |SIP Status
| |(5080) <------------------ (5060) | | |
0 |11.720 | RTP (g711A) | | |RTP Num packets:100 Duration:1.979s SSRC:0xF8E95719
| |(32646) ------------------> (16646) | | |
0 |13.712 | 200 OK SDP (g711A g711U telephone-eventRTPType-101) | | |SIP Status
| |(5080) <------------------ (5060) | | |
0 |13.719 | RTP (g711A) | | |RTP Num packets:200 Duration:3.980s SSRC:0xF8E95719
| |(32646) ------------------> (16646) | | |
0 |17.712 | 200 OK SDP (g711A g711U telephone-eventRTPType-101) | | |SIP Status
| |(5080) <------------------ (5060) | | |
0 |17.720 | RTP (g711A) | | |RTP Num packets:200 Duration:3.981s SSRC:0xF8E95719
| |(32646) ------------------> (16646) | | |
0 |21.712 | 200 OK SDP (g711A g711U telephone-eventRTPType-101) | | |SIP Status
| |(5080) <------------------ (5060) | | |
0 |21.721 | RTP (g711A) | | |RTP Num packets:198 Duration:3.979s SSRC:0xF8E95719
| |(32646) ------------------> (16646) | | |
0 |25.712 | 200 OK SDP (g711A g711U telephone-eventRTPType-101) | | |SIP Status
| |(5080) <------------------ (5060) | | |
0 |25.722 | RTP (g711A) | | |RTP Num packets:389 Duration:7.796s SSRC:0xF8E95719
| |(32646) ------------------> (16646) | | |

1 |29.713 | | BYE | | |SIP Request
| | |(5060) ------------------> (5060) | |
1 |29.721 | | 200 OK | | |SIP Status
| | |(5060) <------------------ (5060) | |