[asterisk-bugs] [JIRA] (ASTERISK-18147) SIP Phone (Cisco)-> Asterisk 1.4.31 -> IAX-> Asterisk 1.6.2.19 > SIP provider -> PSTN IVR DTMF - DTMF broken after upgrade 1.4 to 1.6 or 1.8

[Joshua Colp (JIRA)]

     [ https://issues.asterisk.org/jira/browse/ASTERISK-18147?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Joshua Colp updated ASTERISK-18147:
-----------------------------------

    Affects Version/s: 13.18.4

> SIP Phone (Cisco)-> Asterisk 1.4.31 -> IAX-> Asterisk 1.6.2.19 > SIP provider -> PSTN IVR DTMF - DTMF broken after upgrade 1.4 to 1.6 or 1.8
> --------------------------------------------------------------------------------------------------------------------------------------------
>
>                 Key: ASTERISK-18147
>                 URL: https://issues.asterisk.org/jira/browse/ASTERISK-18147
>             Project: Asterisk
>          Issue Type: Bug
>      Security Level: None
>          Components: Channels/chan_iax2
>    Affects Versions: 1.6.2.19, 1.8.4, 13.18.4
>         Environment: Linux  Cent OS 5, 2.6.18-164.el5
>            Reporter: Alexey Ostrovsky
>         Attachments: capture-broadvox-aster1.8-IAX-ast1.8-Aug-18-2011.dump, capture-broadvox-aster1.8-sip-ast1.8-Aug-18-2011.dump, capture-broadvox-first1.4-second1.6-Aug-18-2011.dump, DTMF-issue.jpg, IAX_between_ast.png, SIP_between_ast.png
>
>
> Hello,
> We have two asterisks 1.4 and 1.6 and IAX between them
> The second asterisk is connected to VoIP provider thru SIP.
> When I calling to conference service on some company and dialling DTMF there in some IVR menu al works fine.
> But recently we decided to upgrade that 1.4 to 1.6.2.19 or 1.8.4
> And we got issues with DTMFs after that.
> Now remote IVR is not able to detect DTMF correctly. Sometime detects wrong digits but mostly it just ignore some.
> In 5% of times when I am pushing buttons for about 1 sec and keep gap between them about 1 sec I can get success with remote IVR.
> But with 1.4.31 I can push DTMFs really fast all works perfectly.
> With 1.8.4 I even noticed that even our second asterisk on other end of IAX start having issues with detecting digits.
> All sip configs have rfc2833 dtmf mode enabled.
> I am not changing any configs after upgraded or downgrade. And it always do not work with 1.6 and working with 1.4.31
> Other strange thing that in any cases I still can see correct DTMF digits events if enabling debug on outgoing SIP channel to our SIP provider.
> Also one thing. When I am replacing IAX with SIP between asterisks then DTMS start detecting correctly with upgraded asterisk.
> So clearly something broken since 1.4.31 related to DTMF.



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