[asterisk-bugs] [JIRA] Issue Comment Edited: (ASTERISK-20424) Erroneous Multiple DTMF Digit Detection

[Vladimir Mikhelson (JIRA)]

    [ https://issues.asterisk.org/jira/browse/ASTERISK-20424?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=197108#comment-197108 ] 

Vladimir Mikhelson edited comment on ASTERISK-20424 at 9/15/12 8:30 PM:
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In my case digits were repeated 3 times.

Several observations:

    * The problem only manifested itself on SIP channel.  OOH323 and DAHDI did not exhibit this problem.
    * I was able to dial the extension with no issues, the problem started in the Voice Mail application.

For example, in the case below I entered "430#"

Please see the log attachment which was supposed to be located in line, but was moved out by some Digium employee, I guess.

[2012-09-14 11:50:06] VERBOSE[32019] app_read.c:     -- User entered '444333000'

Following is the excerpt from the DTMF log:

[Edit by Rusty Newton - removed inline debug and attached as annotated-dtmf-log.txt as mentioned in [Asterisk Issue Guidelines|https://wiki.asterisk.org/wiki/display/AST/Asterisk+Issue+Guidelines#AsteriskIssueGuidelines-Submittingthebugreportinformationrequirements]

I believe Asterisk 1.8.16.0 introduced an issue where a longer DTMF causes a multiple digit recognition effect.

      was (Author: vmikhelson):
    In my case digits were repeated 3 times.

Several observations:

    * The problem only manifested itself on SIP channel.  OOH323 and DAHDI did not exhibit this problem.
    * I was able to dial the extension with no issues, the problem started in the Voice Mail application.

For example, in the case below I entered "430#"

[2012-09-14 11:50:06] VERBOSE[32019] app_read.c:     -- User entered '444333000'

Following is the excerpt from the DTMF log:

[Edit by Rusty Newton - removed inline debug and attached as annotated-dtmf-log.txt as mentioned in [Asterisk Issue Guidelines|https://wiki.asterisk.org/wiki/display/AST/Asterisk+Issue+Guidelines#AsteriskIssueGuidelines-Submittingthebugreportinformationrequirements]

I believe Asterisk 1.8.16.0 introduced an issue where a longer DTMF causes a multiple digit recognition effect.
  
> Erroneous Multiple DTMF Digit Detection
> ---------------------------------------
>
>                 Key: ASTERISK-20424
>                 URL: https://issues.asterisk.org/jira/browse/ASTERISK-20424
>             Project: Asterisk
>          Issue Type: Bug
>      Security Level: None
>          Components: Applications/app_read, Channels/General
>    Affects Versions: 1.8.16.0
>         Environment: CentOS 5.7
> FreePBX 2.10.1.2
>            Reporter: Vladimir Mikhelson
>         Attachments: annotated-dtmf-log.txt, rtp-debug.txt, vm-430.pcapng
>
>
> Starting with asterisk 1.8.16.0 longer DTMF tones transmitted per RFC3822 get interpreted as double, triple, etc. digits.

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