I have main Pilot line which has been charged a $huge amount. Customer has asked to investigate if there is any programming on the pabx where the calls are being tied up and ends up on the main number. I have asked billing group to provide all ddi's but they think there could be programming on the PBX where numbers have not been enabled for a part number forwarding. I assume if i go in ld 49 check current mapping to see if it is linked??