MONTREAL - Bell Canada has announced the public offering of $1 billion of MTN debentures in two series pursuant to its medium term notes (MTN) program. The $400 million 3.50% MTN debentures, Series M-28, will be dated September 10, 2013, will mature on September 10, 2018, and will be issued at a price of Cdn $99.941 per $100 principal amount for a yield to the investor of 3.513% per annum compounded semi-annually. The $600 million 4.70% MTN debentures, Series M-29, will be dated September 10, 2013, will mature on September 11, 2023, and will be issued at a price of Cdn...