A user's role type will determine which calltypes are applicable to them.
Calltypes can be accessed by selecting "Call" tab on the Navigation Bar (A), then "Admin" (B):
You can then select the relevant calltype to view assigned users (C):
The calltype "Weekend Shift" here applies to the roletype "Registrars"
Johnny Bravo has a roletype "Registrar" however in his personal calltype settings, he's been set not to do this calltype:
Individual alterations can then be made to specific users' calltypes as follows:
1. Choose a profile from the "Staff List", and choose the "Admin" button at the top right
2. Select "Calltypes":
3. You can then adjust the user's calltypes
4. For more specific rules (e.g. selecting what days the user regularly does call, or limiting days available for call), select "Settings":