I would say no. The documentation makes no mention of CW-CLID. The feature is not typically used in an office environment, where a multi line hunt group makes more sense. After all, what would the user do if “the other line” were for someone else. He would have to disconnect one of the parties for another extension to pick up. Not to mention the problems call waiting would cause for held calls, AA, etc. I consider it an ill advised feature in any key system/PBX setting.