I need a CCNA for CUBE setup

Recently converted CUCM from T1 to SIP. Currently the Sonicwall is the border element and is having consistency issues. Cisco router is licensed as a CUBE and has enough processing power to handle the call load, so I want to set it up as the CUBE for CUCM using then validate the removal of the original T1 configuration from the router. Will need to be familiar with Sonicwall.