I am working on a bcm 400 4.0 with a PRI. The PRI is apparently VOIP from the router in the customers building to the Verizon CO. Inbound calls work fine, but I can't call outbound. Verizon keeps telling me that my system needs to outpulse 4 digits of outbound caller ID to "authenticate to the platform." I thought this would be easy enough, I put 4 digits in the public OLI, but still nothing. Ive tried 7 or 10 digits also. They say they can't see any outbound caller ID at all. Any suggestions? Thanks