37. CALL PROCESS IN UPLINK : 1. Uplink Path GSM antenna. Dual Variable Gain Duplex Filter (DVxx) unit. 3. Multicoupler (M2xx and M6xx). 4. TRx(transceiver). 5. BB2F Card for DSP. 6. Transmission (VXxx) unit. 7. To BSC through Microwave Antenna
38. CALL PROCESS IN DOWNLINK : Downlink Path From BSC through Microwave Antenna Transmission unit(VXxx). BB2F Card for DSP. TRX (Transceiver). Wideband Combiner unit (WCxx). Duplexer. GSM antenna, which passes the signal through the Air interface to the MS
39. SITE VISIT : TATA Problem : Rajkot MSC was not getting connectivity from Junagadh. Solution: Then by ping address of all the BTS in Junagadh connectivity is checked, we found the faulty BTS then it was found that GLI card of that BTS was damaged which was replaced afterwards.