January 11, 2018 - With a number of mobile base leases up for renewal, some landowners have expressed concern over the renegotiation tactics of carriers including Telstra, Optus, Vodaphone, TPG, and NBN. Many telecom leases throughout Australia commenced in the early 2000's with initial lease terms of 15-20 years so now that so many of them are approaching expiry, some wonder what to expect for the future of their mobile base leases.