Telkom ends break-up talks with MTN, Vodafone JOHANNESBURG, Nov 28 (Reuters) - Telkom (TKGJ.J: Quote, Profile, Research), South Africa’s former telecoms monopoly, on Wednesday called off break-up talks with mobile phone rival MTN (MTNJ.J: Quote, Profile, Research) and partner Vodafone Group Plc (VO in Public bookmarkswith telecomvodafone