MOH directly from USB / UCX50 4.5 1

The simple answer is no. Considering the storage size on the UCx50, 20 MB of music and announcements is effectively nothing - I see no reason why you shouldn't simply upload these files to the UCx system. Use the PBX - PBX Configuration - Music on Hold page to upload the MOH files and the PBX - PBX Configuration - System Recordings to upload the announcements.

ucxguy, The wiki site says
"There is a 20 MB file size limit configured for uploads to the UCX system"
Am I missing something or maybe the site has not been updated?

The 20 MB is a file size limit for a single file upload. You can upload many files up to 20 MB each.

Again another instance of needing root access!

It is possible with root access and the files on the usb stick are .wav mono, 16 bit, 8000Hz

Web GUI PBX tab -> PBX Configuration -> Music on Hold -> Add Music Category enter fromusb (or name of your choice)
save and apply
Insert usb stick goto Support tab choose messages from the system log files drop down menu
scroll to the bottom and look for anything about usb mass storage device mine happens to be sdb:sdb1 but only the sdb1 is needed

from the cmd line with root privileges enter mount /dev/sdb1 /var/lib/asterisk/mohmp3/fromusb
if it mounted you can enter ls-l /var/lib/asterisk/mohmp3/fromusb and a list of files on the stick will be displayed

Now choose fromusb as your MOH source on inbound routes etc.

Remember to unmount the stick before removing by entering umount /dev/sdb1 from the cmd line

How do you get to a command line with root privileges?

Why don't you just buy a music-on-hold device like a Premier or similar and use the streaming input capability of the UCx? It will play whatever you put on the USB stick.

Hi Guys thank you for all of your responses appreciate your efforts