[asterisk-dev] PJSIP on Asterisk 16 doesn't send t38 packets when sending via res_fax module.

גי איי אס מערכות תקשורת office at phonecall.co
Wed Dec 2 10:37:49 CST 2020


16.11.1

Works ok for me now also got already 1.3m calls on it not the last version but works fine 

 

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From: asterisk-dev <asterisk-dev-bounces at lists.digium.com> On Behalf Of Steve Sether
Sent: Wednesday, December 2, 2020 6:14 PM
To: asterisk-dev at lists.digium.com
Subject: Re: [asterisk-dev] PJSIP on Asterisk 16 doesn't send t38 packets when sending via res_fax module.

 

This is in fact the exact problem.  We use local channels when sending out faxes.
 
Thanks for your quick reply.
 
On Tue, Dec 1, 2020 at 6:23 PM Steve Sether <ssether at usinternet.com <http://lists.digium.com/mailman/listinfo/asterisk-dev> > 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 <http://www.sangoma.com>  and www.asterisk.org <http://www.asterisk.org> 





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