[asterisk-bugs] [JIRA] (ASTERISK-21522) [patch] DTMF end is not always processed, causes one-way audio

[Corey Farrell (JIRA)]

     [ https://issues.asterisk.org/jira/browse/ASTERISK-21522?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Corey Farrell updated ASTERISK-21522:
-------------------------------------

    Attachment: rtp_dtmf_process_end.patch

Ensure rtp->sending_digit and rtp->send_digit are always zero after DTMF end.
                
> [patch] DTMF end is not always processed, causes one-way audio
> --------------------------------------------------------------
>
>                 Key: ASTERISK-21522
>                 URL: https://issues.asterisk.org/jira/browse/ASTERISK-21522
>             Project: Asterisk
>          Issue Type: Bug
>      Security Level: None
>          Components: Resources/res_rtp_asterisk
>    Affects Versions: SVN, 1.8.22.0, 11.4.0
>            Reporter: Corey Farrell
>         Attachments: rtp_dtmf_process_end.patch
>
>
> Some Cisco IVR's will tell Asterisk to stop sending RTP as soon as DTMF start is received.  Then the Cisco redirects the call to a new destination.  Once the IVR destination answers, asterisk resumes sending DTMF since we were not sending rtp when it should have processed DTMF end.  This causes one-way audio for the duration of the call.
> My patch has been tested on the customer's system with Asterisk 11.2.1.

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