[Freeswitch-users] Fax receive issue with t30 codec

Hardik Patel hardikitpl at gmail.com
Tue Jun 6 11:11:33 UTC 2017


I am using opensips as entry point using dispatcher. opensips(,
i am routing call to freeswitch server (

Now I am trying to receive fax, my issue is when i try to send fax in
softphone(Zoiper) from the log i am seeing that it is sending fax using t30
codec. and i am not receiving the fax at destination, is it because of
codec, should it only work with t38 codec? if that is the issue than how am
i be able to send the fax using t38 from zoiper?

Here i am attaching the fs log with loglevel 9 and sip trace is also
enabled.  => carrier/provider IP
123456789 => Fax number
test at gamil.com => Email Address =>UI IP

Pastebin link:https://pastebin.freeswitch.org/view/9ec52715
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