[asterisk-bugs] [JIRA] (ASTERISK-25169) No audio from voicemail app with v13.4.0 on Grandstream GXP20XX phones

[Rusty Newton (JIRA)]

    [ https://issues.asterisk.org/jira/browse/ASTERISK-25169?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=226537#comment-226537 ] 

Rusty Newton commented on ASTERISK-25169:
-----------------------------------------

Thank you for taking the time to report this bug and helping to make Asterisk better. Unfortunately, we cannot work on this bug because your description did not include enough information. Please read over the Asterisk Issue Guidelines [1] which discusses the information necessary for your issue to be resolved and the format that information needs to be in. We would be grateful if you would then provide a more complete description of the problem. At a minimum, we need:

1. The specific steps or actions you took that caused you to encounter the problem.
2. The behavior you expected and the location of documentation that led you to that expectation.
3. The behavior you actually encountered.

To demonstrate the issue in detail, please include Asterisk log files generated per the instructions on the wiki [2]. If applicable, please ensure that protocol-level trace debugging is enabled, e.g., 'sip set debug on' if the issue involves chan_sip, and configuration information such as dialplan and channel configuration.

Thanks!

[1] https://wiki.asterisk.org/wiki/display/AST/Asterisk+Issue+Guidelines

[2] https://wiki.asterisk.org/wiki/display/AST/Collecting+Debug+Information



> No audio from voicemail app with v13.4.0 on Grandstream GXP20XX phones
> ----------------------------------------------------------------------
>
>                 Key: ASTERISK-25169
>                 URL: https://issues.asterisk.org/jira/browse/ASTERISK-25169
>             Project: Asterisk
>          Issue Type: Bug
>      Security Level: None
>          Components: Applications/app_voicemail
>    Affects Versions: 13.4.0
>         Environment: Ubuntu 14.04.2 LTS x64
> Vmware ESXi 5.5
> Guest memory allocation: 1GB
>            Reporter: Idon
>
> When either calling into the voicemail application directly or being transferred to voicemail (i.e. when called party is unavailable), none of the voicemail prompts can be heard.  Looking at the Asterisk console, it is evident that it is being processed, but there is no audio.
> This is a regression introduced in Asterisk 13.4.0 and, so far, appears to affects only Grandstream phones.  The specific models we have that I've tested against are GXP2000 and GXP2020.
> So far, no other IP phone (Snom and Digium) or softphone (Jitsi) I've tested against has an issue with voicemail and 13.4.0.
> Reverting to 13.2.0 resolves the issue.
> I'm not sure what else may be required to help track down the issue.  I tried debugging RTP in the console and I do see communication between the phone and Asterisk; therefore, Asterisk must be sending some malformed bit of data that's causing Asterisk to ignore the stream.
> Let me know if there's some additional bit of info that's needed.



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