T-GSM 810 / GT800

T-GSM 810 is a version of the trunked GSM system which is especially specified to encompass the existing GSM-based trunking system standard in China, GT800. GT800 provides both the circuit switched and packet switched GSM services as well as trunked radio services.

The band independent format of GSM specifications allows all GSM services to be deployed in the GT800 band. So it was decided to add the new frequency band to the GSM specification as T-GSM 810 for the GT800 system.

T-GSM 810 operates in the following frequency bands:

• 806 MHz to 821 MHz:
     mobile transmit, base receive.
• 851 MHz to 866 MHz:
     base transmit, mobile receive.