FLEXmaster16 module eliminates the uncertainty of cell site backhaul network protocol migration from TDM to ATM or IP by offering unparalleled backhaul networking flexibility for UMTS migration paths. ATM, IP and GSM Abis compression options can be remotely upgradeable via simple software loads. Wireless carriers can now control transport costs, install new services, and more efficiently utilize existing T1/E1 lines with the FLEXmaster16 module with GSM, UMTS and IP traffic consolidation over a common backhaul transport (TDM,ATM or Ethernet). It is the ideal solution for carriers implementing next-generation transport solutions for their BSS network over existing infrastructures.