When you are using Telephony Service, you are effectively configuring the Call Manager Express which is a stand alone Call Manager by itself. Instead of alias, you can play with ephone-dn's to achieve different things just like you do with alias along with call-manager-fallback SRST setup.
These are the paths to get to each CCX logs through CLI. They may be helpful if you are having issues accessing RTMT or downloading logs through it.
If you want to download them you have to prefix "file get " and you can add one of the options (re...