[asterisk-bugs] [JIRA] (ASTERISK-29700) DTMF is sent in RTP events even if remote 200 OK omits telephone-event

[Kingsley Tart (JIRA)]

     [ https://issues.asterisk.org/jira/browse/ASTERISK-29700?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Kingsley Tart updated ASTERISK-29700:
-------------------------------------

    Attachment: dtmf-test.pcap.gz
                astlog.gz

Here is a pcap file of a call demonstrating the issue. The Asterisk server is on 88.151.41.29.

astlog.gz is an Asterisk log with full debug as described on
https://wiki.asterisk.org/wiki/display/AST/Collecting+Debug+Information

> DTMF is sent in RTP events even if remote 200 OK omits telephone-event
> ----------------------------------------------------------------------
>
>                 Key: ASTERISK-29700
>                 URL: https://issues.asterisk.org/jira/browse/ASTERISK-29700
>             Project: Asterisk
>          Issue Type: Bug
>      Security Level: None
>          Components: pjproject/pjsip
>    Affects Versions: 18.7.1
>         Environment: Debian 10. Asterisk compiled from source.
>            Reporter: Kingsley Tart
>         Attachments: astlog.gz, dtmf-test.pcap.gz
>
>
> a. Asterisk receives INVITE containing SDP telephone-event
> b. Asterisk uses Dial with pjsip and sends INVITE to destination
> including SDP telephone-event
> c. Asterisk receives 200 OK back from destination WITHOUT telephone-
> event
> d. Asterisk forwards DTMF received to the destination in RTP events instead of falling back to inband audio
> We do have spandsp installed (if that's relevant?). This Asterisk installation DOES recognise inband audio DTMF being sent in to it.



--
This message was sent by Atlassian JIRA
(v6.2#6252)