[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:comment-tabpanel&focusedCommentId=200485#comment-200485 ] 

Rusty Newton commented on ASTERISK-20773:
-----------------------------------------

Does this happen on extension to extension calls, or only on calls out through the TE410P and your service provider?

Do your users "hear" a beep on the line? Or are you only seeing this indicated within Asterisk's debug?

If this does not happen on extension to extension calls (only within Asterisk, as in SIP to SIP on local LAN), then you should contact your service provider to have them investigate.  I've seen situations where a service provider had equipment sending out tones on the line on a regular frequency.


                
> fake DTMF or talkoff
> --------------------
>
>                 Key: ASTERISK-20773
>                 URL: https://issues.asterisk.org/jira/browse/ASTERISK-20773
>             Project: Asterisk
>          Issue Type: Information Request
>      Security Level: None
>         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
>            Assignee: Russ Meyerriecks
>         Attachments: beep_log_filtered.cap, beep_log_filtered.log, chan_dahdi_additional.conf, chan_dahdi.conf, dahdi-channels.conf, 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:
> [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
> 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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