The Globe and Mail reports in its Friday edition Telus is eyeing a potential shutdown of at least one of its legacy wireless networks over the next two years. The Globe's Rita Trichur writes Telus, which is looking to rein in costs, sees the potential to save money by decommissioning its older CDMA network as growing numbers of its customers upgrade to smart phones that run on the faster LTE network. It may also eventually mothball another outmoded network that supports its push-to-talk Mike service now that U.S. carrier Sprint has powered down a corresponding network south of the border. "On wireless, there is good opportunity [to reduce costs]. We still run a CDMA network, we still run an IDEN network. Those will have to be shut down in time," John Gossling, Telus's chief financial officer, told a conference in Montreal. "IDEN has been shut down now in the U.S.; Sprint has done that. So, you know these things will also provide good savings on the wireless side." Although a "relatively large piece" of Telus's more than seven million wireless subscribers still uses old-fashioned CDMA cellphones, that number is expected to tumble fairly quickly as customers take advantage of upgrade opportunities.