I'm aware in cucimoc softphone mode we have telephony presence.
I'm trying to understand how or if telephony presence is provided in cucimoc deskphone mode ?
To set up desk phone mode, you need to associate the desk phone to end user (CUCM > User Management > End user). And you need to put the user into "Standard CTI Enabled" group.
On the client, nothing needs to be defined. After you logged in, CUCIMOC will retrieve a list of desk phone associated with your user ID and allows you pick one to control.