[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=227570#comment-227570 ] 

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

I'll take a look at this today. I think it slipped through the cracks due to the "reopened" status. Thanks for providing thorough details on how to reproduce that should be helpful.

> 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
>            Assignee: Rusty Newton
>         Attachments: extensions.conf, grandstream.cap, jitsi.cap, modules.conf, pjsip.conf, voicemail.conf
>
>
> 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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