(Mobile Telephone Switching Office) An operations center that connects the landline PSTN system to the mobile phone system. It is also responsible for compiling call information for billing and handing off calls from one cell to another.
If a CMRS provider interconnects its MTSO with a LEC at the LEC's tandem switch rather than at an end-office switch, the LEC incurs tandem switching costs in addition to end-office switching costs to complete a call.
Graham Triggs, KLAS director of financial and services research and author of the MTSO report said, "The shake-up in vendor rankings this year illustrates how competitive the MTSO market is and that vendors have to always be looking to improve the service they offer providers.
The new MTSO will also serve as the Verizon Wireless emergency operations center in South Florida, and be home to a fleet of COWs (cell on wheels), COLTs (cell on light trucks) and GOATs (generators on trucks) for use during and after significant events like hurricanes.