Asterisk Drop Call

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Hello I have an asterisk 16.2.1 on an ubuntu on AWS, which is experiencing a drop in call. It does not have a certain time, it is random. The audio is flowing normally and the call is dropped. Has anyone ever experienced this?

My settings changed below:

allowoverlap = no udpbindaddr = 0.0.0.0
tcpenable = no tcpbindaddr = 0.0.0.0

transport = udp, ws, wss

srvlookup = yes

directmedia = no

rtcachefriends = yes

externaddr = my ip address

externhost = my domain address ;   foo.dyndns.net; refreshed periodically externrefresh = 180

      localnet = 172.31.40.21 / 255.255.240.0; AWS NETWORK
      localnet = 192.168.0.0 / 255.255.0.0; RFC 1918 addresses
      localnet = 10.0.0.0 / 255.0.0.0; Also RFC1918
      localnet = 172.16.0.0 / 12; Another RFC1918 with CIDR notation
      localnet = 169.254.0.0 / 255.255.0.0; Zero conf local network
      localnet = 200.0.0.0 / 24
      localnet = 191.0.0.0 / 24
      localnet = 201.0.0.0 / 24
      localnet = 177.0.0.0 / 24

      localnet = 179.0.0.0 / 24

Thanks

Roberto.

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5 thoughts on - Asterisk Drop Call

  • Is there anything in the Asterisk logs? Which side sends the BYE? Were you able to capture the traffic with sngrep/wireshark to see if any side stopped sending/getting RTP? What did the other side see?

  • Hello. Thanks for the reply.

    Yes. In the traffic analyzed, the BYE is sent by the originator of the call, but there is no “human” hangup, but the asterisk one.

    BYE is sent, received and confirmed.

    I don’t know how I could investigate the reason for this BYE.

    Em 21/09/2020 17:12, Dovid Bender escreveu:

  • Roberto

    Check your router if ALG or similar feature is enabled. Disable and test. Also, on SNGREP check if both parties are getting ACK correctly after RTP
    starts.

    *–*
    *Atenciosamente,*

    *Luciano Moreira**(85)99974-2750*

    *__Logic Telecom*
    *0800-085-7799 | (85)4042-7799 | **(11)4210-7799*

    Em ter., 22 de set. de 2020 às 13:35, Roberto < roberto.medola@gasparimsantos.com.br> escreveu:

  • The problem has been detected. FXS equipment is causing the fall. Most likely from some bad contact. Thank you all for your help.

    Roberto.

    Em 22/09/2020 14:41, Luciano Moreira escreveu:

  • Thanks Luciano. But there is no active ALG on the modem. Attached the call flow, including the ACK.

    Em 22/09/2020 14:41, Luciano Moreira escreveu: