UPDATE 1-Telco payment venture targets Visa, MasterCard By: Reuters: Company News November 16, 2010 at 16:20 PM EST * Sees service launch in next 18 months (Rewrites throughout with comment from Isis, Discover, Visa interviews, background, bylines) Read More >> Related Stocks: AT&T Inc Allegheny Technologies American Express Bank of America Barclays Plc ADR DTE Energy Discover Financial Services JPMorgan Chase & Co MasterCard Verizon Communications Visa Wells Fargo