PROBLEM T.38 and FAX PJSIP - 488 NOT ACCEPT HERE

OK, thanks for you help.

Hi
I’m having the same issue, during sending fax. Although if I use my asterisk switch directly, it’s working fine, but if I use ARI, I get 488 error… And I know we can’t have both fax stream and audio stream, and I get a reinvite changing stream, but it doesn’t work… how can I fix this?
I tried to set t38passthrough variable of channel to 1, but it didn’t work.

I’d suggest starting a new thread instead of hijacking this one. As well you’ll need to provide the actual configuration, SIP trace, console output, and information about what exactly your ARI application is doing.