The Association of Basic Telecom Operators (ABTO) on Wednesday warned that the TRAI’s move to equate limited mobility service though WLL with cellular service in terms of access charges may result in making these services less affordable. Private basic operators said that they would approach TRAI and the Ministry of Communications on the issue.‘‘TRAI through its recent tariff amendment which has equated WLL (mobility) service with cellular service as regards interconnect usage charges (IUC) is addressing cellular industries concerns to the detriment of basic service operators,’’ S. Ramakrishnan, the new president of the ABTO.