On Tue, Dec 1, 2020 at 6:23 PM Steve Sether <sset...@usinternet.com> wrote:

> I'm having a lot of trouble getting PJSIP to send a fax via T.38 in
> Asterisk 16.14.1.
>
>  From the pcap, I see the call being made, it connects, RTP goes in both
> directions, the far-end requests a re-invite using t.38, Asterisk sends
> an OK, the OK is acked, and the far ends starts sending t.38 packets,
> asterisk stops sending RTP.
>
> Then Asterisk basically sends nothing else.  No T.38 packets are sent by
> Asterisk, No SIP, nothing.  The far end eventually gives up sending
> t.38, and sends a bye, ending the call.
>

Do you have a Local channel in the mix? If so then there is a known
issue[1] which is being worked on.

[1] https://issues.asterisk.org/jira/browse/ASTERISK-29035

-- 
Joshua C. Colp
Asterisk Technical Lead
Sangoma Technologies
Check us out at www.sangoma.com and www.asterisk.org
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