VOIP Phone calls drops



  • Dear all,
    After we update one hr to the latest Pfsense our VOIP internal phones are dropping calls for 10 second . so when we are talking to a customer the phone call drops for couple of second and restore, so the conversation is not to follow on both sides.
    on the LAN side we are had always used any to any rules and no rules on the WAN.
    The firewall is Conservative .
    The PBX is hosted at the provider external in this case. we never had any issues at all before untill the updates.

    on the PfTop it does shows the IP of the PBX with State of MULTIPLE:MULTIPLE.

    77.60.91.250 is our WAN IP
    66.200.164.30 is the PBX IP where the SIP request coming from.

    pfTop: Up State 1-166/166, View: default, Order: age
    PR        DIR SRC                                           DEST                                                   STATE                AGE       EXP     PKTS    BYTES                                 
    t                                 
                                     
    udp       In  10.10.56.43:2051                              66.200.164.30:5060                               MULTIPLE:MULTIPLE     25:21:48  00:00:57    13389  4140858                                 
    udp       Out 77.60.91.250:33041                            66.200.164.30:5060                               MULTIPLE:MULTIPLE     25:21:48  00:00:57    13389  4140858                                 
    udp       In  10.10.56.83:2051                              66.200.164.30:5060                               MULTIPLE:MULTIPLE     25:21:39  00:00:51    13726  4361107                                 
    udp       Out 77.60.91.250:61763                            66.200.164.30:5060                               MULTIPLE:MULTIPLE     25:21:39  00:00:51    13726  4361107                                 
    udp       In  10.10.56.83:2048                              66.200.164.30:5060                               MULTIPLE:MULTIPLE     25:21:39  00:00:54     7858  3452671                                 
    udp       Out 77.60.91.250:19679                            66.200.164.30:5060                               MULTIPLE:MULTIPLE     25:21:39  00:00:54     7858  3452671                                 
    udp       In  10.10.56.34:5060                              66.200.164.30:5080                               MULTIPLE:MULTIPLE     25:21:37  00:00:53     7890  3984866                                 
    udp       Out 77.60.91.250:47441                            66.200.164.30:5080                               MULTIPLE:MULTIPLE     25:21:37  00:00:53     7890  3984866                                 
    udp       In  10.10.56.38:5060                              66.200.164.30:5080                               MULTIPLE:MULTIPLE     25:21:13  00:00:42     7444  2757788                                 
    udp       Out 77.60.91.250:27883
    


  • We have done a packet capture.
    i cannot seem to find a error. also i cannot upload the log using txt file



  • @cyberbot said in VOIP Phone calls drops:

    77.60.91.250

    Make a WAN rule with your service providers IP as the source and your client devices as the destination.

    What RTP does your service use?