We have a MICS system with an installed CI card that allows the caller ID to work. We have a Sanyo Portable phone with caller ID connected to an ATA2 with all the programming set as Caller ID:Y (both under the EXT and the line). The caller ID sometimes shows between the first and second ring on the portable but most times it does not work even when caller ID is working on other phones. Any suggestions would be appreciated. Thanks.