My CentOS 8 Copr has been updated with 1.10.4.

The two  new required dependencies have been added: spandsp>=1.99, and sofia-sip>=1.12.12.

Dependencies: https://copr.fedorainfracloud.org/coprs/beaveryoga/broadvoice/
FreeSWITCH 1.10.3/4: https://copr.fedorainfracloud.org/coprs/beaveryoga/FreeSWITCH/

Direct links:
* https://download.copr.fedorainfracloud.org/results/beaveryoga/broadvoice/epel-8-x86_64/
* https://copr-be.cloud.fedoraproject.org/results/beaveryoga/FreeSWITCH/epel-8-x86_64/

Enjoy!

Richard Chan