[asterisk-bugs] [JIRA] (ASTERISK-20773) fake DTMF or talkoff

[Rusty Newton (JIRA)]

     [ https://issues.asterisk.org/jira/browse/ASTERISK-20773?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Rusty Newton reassigned ASTERISK-20773:
---------------------------------------

    Assignee:     (was: Rusty Newton)
    
> fake DTMF or talkoff
> --------------------
>
>                 Key: ASTERISK-20773
>                 URL: https://issues.asterisk.org/jira/browse/ASTERISK-20773
>             Project: Asterisk
>          Issue Type: Bug
>      Security Level: None
>          Components: Core/General
>         Environment: DAHDI Version: 2.6.1 Echo Canceller: HWEC, OSLEC
> Asterisk 1.8.18.0 i686 running Linux CentOS release 5.8
> pci:0000:02:06.0     wct4xxp+     d161:0410 Wildcard TE410P (3rd Gen)
>            Reporter: Marlon Costa
>         Attachments: beep_log_filtered.cap, beep_log_filtered.log, chan_dahdi_additional.conf, chan_dahdi.conf, dahdi-channels.conf, dtmf_rx.raw, dtmf_tx_rx.raw, init.conf, modules, system.conf, xpp.conf
>
>
> Hi,
> Many of our customers claims a beep when making or receiving calls.
> Our tech team enabled debug in our Asterisk and found that this beeps are DTMF tones.
> In asterisk logs it's possible see this things many times:
> {noformat}
> [Dec  5 12:40:13] DEBUG[5764] chan_dahdi.c: Begin DTMF digit: 0x41 'A' on DAHDI/i1/21499100-fab
> [Dec  5 12:40:13] DTMF[5764] channel.c: DTMF begin 'A' received on DAHDI/i1/21499100-fab
> [Dec  5 12:40:13] DTMF[5764] channel.c: DTMF begin passthrough 'A' on DAHDI/i1/21499100-fab
> [Dec  5 12:40:13] DEBUG[5764] chan_dahdi.c: End DTMF digit: 0x41 'A' on DAHDI/i1/21499100-fab
> [Dec  5 12:40:13] DTMF[5764] channel.c: DTMF end 'A' received on DAHDI/i1/21499100-fab, duration 51 ms
> [Dec  5 12:40:13] DTMF[5764] channel.c: DTMF end accepted with begin 'A' on DAHDI/i1/21499100-fab
> [Dec  5 12:40:13] DTMF[5764] channel.c: DTMF end 'A' detected to have actual duration 60 on the wire, emulation will be triggered on DAHDI/i1/21499100-fab
> [Dec  5 12:40:13] DTMF[5764] channel.c: DTMF end 'A' has duration 60 but want minimum 80, emulating on DAHDI/i1/21499100-fab
> [Dec  5 12:40:13] DTMF[5764] channel.c: DTMF end emulation of 'A' queued on DAHDI/i1/21499100-fab
> {noformat}
> We done a wireshark capture to find out what is happening and it's possible see an RTP EVENT during these beeps see file attached.
> Could you please, help us to solve this issue?
> Thanks,
> Marlon

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