Using CCA 2.0, the number of digits for outbound calls depend on the dialplan configuration. Using the embedded NA dial plan, you can do 7 and 10 digits.
Regarding the switch type, you can select "primary-ni"for National ISDN Switch types 1 and 2, but by default no ISDN configuration is there.
Hope this helps,
Marcos Hernandez
Technical Marketing Engineer
Cisco Systems, Inc.