[OpenSIPS-Users] Negative replies retransmission

[Alexander Mustafin]

Good day!

I’ve a problem with negative replies retransmission. Dialog is destroyed at this moment by upstream negative reply. How to prevent this behaviour?

                    FS      OpenSIPS     AST1      AST2
0.000000       |--------->|                        |         |        INVITE sip:1234567890 at sbc.ops.lan | +SDP [0s]
0.351449       |<---------|                        |         |        100 Giving a try [0.35s]
0.351919       |             |------------------>|         |        INVITE sip:1234567890 at 192.168.0.155 | +SDP [0.35s]
0.354767       |             |<------------------|         |        100 Trying [0.35s]
1.309592       |             |<------------------|         |        603 [1.31s]
1.310000       |             |------------------>|         |        ACK sip:1234567890 at 192.168.0.155 [1.31s]
1.886184       |             |-------------------------->|       INVITE sip:1234567890 at 192.168.0.199 | +SDP [1.89s]
1.951046       |             |<--------------------------|       100 Trying [1.95s]
6.725141       |             |<--------------------------|       183 Progress | +SDP [6.73s]
6.726316       |<---------|                                  |       183 Progress | +SDP [6.73s]
6.799651       |             |<--------------------------|       180 Ringing [6.8s]
6.800444       |<---------|                                  |      180 Ringing [6.8s]
13.996213     |--------->|                                  |       CANCEL sip:1234567890 at sbc.ops.lan [14s]
14.259989     |             |--------------------------->|      CANCEL sip:1234567890 at 192.168.0.199 [14.26s]
14.321767     |             |<---------------------------|      200 OK [14.32s]
14.322271     |             |<---------------------------|     487 Request Terminated [14.32s]
14.322748     |             |--------------------------->|      ACK sip:1234567890 at 192.168.0.199 [14.32s]
14.323271     |<---------|                                   |     487 Request Terminated [14.32s]
14.323859     |--------->|                                   |     ACK sip:1234567890 at sbc.ops.lan [14.32s]
14.825038     |<---------|                                   |     487 Request Terminated [14.83s]
14.825669     |--------->|                                   |     ACK sip:1234567890 at sbc.ops.lan [14.83s]
15.826212     |<---------|                                   |     487 Request Terminated [15.83s]
15.826901     |--------->|                                   |     ACK sip:1234567890 at sbc.ops.lan [15.83s]
17.821087     |<---------|                                   |     487 Request Terminated [17.82s]
17.821674     |--------->|                                   |     ACK sip:1234567890 at sbc.ops.lan [17.82s]
21.827427     |<---------|                                   |     487 Request Terminated [21.83s]
21.828124     |--------->|                                   |     ACK sip:1234567890 at sbc.ops.lan [21.83s]


Best regards,
Alexander Mustafin
mustafin.aleksandr at gmail.com




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