For the late, great Dinah Washington, whose mellifluous turn of phrase brought a touch of heaven to this world, it was a day that makes a difference. Under a recent decision from Canada, for business lawyers who toil with drafting the phrases in the contracts that govern the mundane affairs of this world, it is a comma that makes a difference. On July 28, the Canadian Radio-Television and Telecommunications Commission issued its decision in the Application by Rogers Cable Communications Inc. Regarding Alliant Telecom Inc.'s Termination and Assignment of a Support Structure Agreement, Telecom Decision CRTC 2006-45. The Commission addressed whether Alliant Telecom had the right to terminate its contract with Rogers at any time on one year's notice, and based its decision on the placement of a comma in the termination clause....