I need to send some faxes, but I can correctly send only the first one. If I try to send another fax, the web interface become unresponsive as far as the first fax is correctly sent.
What do I have to do, please?
This is a issue with how ARI in FreePBX works. Its blocking until the process completed. In FreePBX 12 with the new UCP replacement of ARI this is all resolved.