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

[Idon (JIRA)]

    [ https://issues.asterisk.org/jira/browse/ASTERISK-25169?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=227573#comment-227573 ] 

Idon commented on ASTERISK-25169:
---------------------------------

This is very strange.  Following your replies, I decided to try again and now I get the prompts.

For Grandstreams, all we have are 2000, 2020, and GXV3175 (which is a crappy phone we don't use).  The 20XX phones are running firmware version 1.2.5.3 and 1.2.4.3, respectively.

It is possible that the issue has somehow resolved itself, but I'm not sure of an exact cause.  There were some network changes, so who knows.  The fact that only Grandstream phones were affected makes it difficult to guess and probably suggest quality problems with their software.

I will continue to test over the next few days and let you know, if the issue is truly resolved.

Thanks
 

> 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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