[asterisk-bugs] [JIRA] (ASTERISK-28162) [patch] need to reset DTMF last sequence number and timestamp on voice packet with marker bit

[Alexei Gradinari (JIRA)]

     [ https://issues.asterisk.org/jira/browse/ASTERISK-28162?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Alexei Gradinari updated ASTERISK-28162:
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    Review Link: https://gerrit.asterisk.org/10623

> [patch] need to reset DTMF last sequence number and timestamp on voice packet with marker bit
> ---------------------------------------------------------------------------------------------
>
>                 Key: ASTERISK-28162
>                 URL: https://issues.asterisk.org/jira/browse/ASTERISK-28162
>             Project: Asterisk
>          Issue Type: Bug
>      Security Level: None
>          Components: Resources/res_rtp_asterisk
>    Affects Versions: 13.23.1
>            Reporter: Alexei Gradinari
>
> The marker bit set on the voice packet indicates the start
> of a new stream and a new time stamp.
> Need to reset the DTMF last sequence number and the timestamp of the last END packet.
> If the new time stamp is lower then the timestamp of the last DTMF END packet the asterisk drops all DTMF frames as out of order.
> This bug was caught using Cisco ip-phone SPA50X  and codec g722.
> On SIP session update the SPA50X resets stream indicating it with market bit and a new timestamp is twice smaller then the previous.



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