Custom Caller Id in security_phrase

I can’t seem to get this working. I have the Custom Callerid field in the campaigns settings to “Y”.
I have a phone number in the security_phrase for that lead, but for some reason it’s always using the campaign caller id.
I tried several different numbers for the caller id in the campaign settings (to make sure the carrier allows custom caller id) and it always uses those numbers instead of the security_phrase. Is there additional setting I should be looking at?
I have a phone number in the security_phrase for that lead, but for some reason it’s always using the campaign caller id.
I tried several different numbers for the caller id in the campaign settings (to make sure the carrier allows custom caller id) and it always uses those numbers instead of the security_phrase. Is there additional setting I should be looking at?