Is there a hardware requirement for a PRI using Call Control FNE 00 which allows the user the ability to mask their caller ID number? I can dial into the DID that has the FNE 00 short code set up. I get a dial tone but then I can't break the dial tone for either internal or external. I just keep getting dial tone. I am using one of the PRI carrier cards with the legacy PRI card. I have all the correct items ticked on the users profile.