[asterisk-bugs] [JIRA] (ASTERISK-28199) No audio when using iLBC codec

[Joshua C. Colp (JIRA)]

    [ https://issues.asterisk.org/jira/browse/ASTERISK-28199?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=245666#comment-245666 ] 

Joshua C. Colp commented on ASTERISK-28199:
-------------------------------------------

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 when using iLBC codec
> ------------------------------
>
>                 Key: ASTERISK-28199
>                 URL: https://issues.asterisk.org/jira/browse/ASTERISK-28199
>             Project: Asterisk
>          Issue Type: Bug
>      Security Level: None
>          Components: Codecs/codec_ilbc
>    Affects Versions: 13.23.1
>         Environment: Centos 6 32bit
>            Reporter: Ariel Grin
>            Assignee: Unassigned
>            Severity: Minor
>              Labels: pjsip
>
> Hi all: I’m trying to use iLBC codec but I found that iLBC has a no audio issue. If both endpoints are using iLBC neither endpoint can hear the other, even though RTP packets are flowing correctly, as checked with rtp debug. Also if an echo test is performed on an endpoint with iLBC, neither the initial explanatory message nor the echo itself can be heard. If one endpoint is using iLBC and the other is using another codec, I tried with ulaw, g729 and g722, iLBC endpoint can’t hear the other non-iLBC endpoint, but non-iLBC endpoint can hear iLBC endpoint.
> This has been tested between internal extensions on a local LAN, no NAT involved. This issue only happens when one or both endpoints are using iLBC. There are no audio issues when using any other codec except iLBC.



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