So after you throw out all the crap and gobblegook that the others use, the basic answer is still the same. * For a CT1, B8ZS is of no value. There is sufficent one's density for the equipment to operate just fine without it. * ESF is a diagnostic tool and is a good thing but a lot of voice equipment doesn't have the capability. As far as rest, the signal to noise ratio for this mailing list is one of the poorest of the other equipment support lists that I subscribe to. I would have hoped this was a list of network professionals that were trying to help each other. Some participants seem to want to just be very caustic. To the rest, I apologize for leaving off my signature if that's important to you Roy - To unsubscribe to usr-tc, send an email to "majordomo@xmission.com" with "unsubscribe usr-tc" in the body of the message. For information on digests or retrieving files and old messages send "help" to the same address. Do not use quotes in your message.