DIff between Fifa card and rri card
wat does a trx and a duplexer do
wat is e1t1 card
bypassing of e1
how to bypass 1/2 e1 in flexi and ultra
alarms and troubleshooting of alarms
wat is vswr? limit of vswr?
wat is pcm,wat is ciphering?
wat r the requirements in Fiu commisioning
wats the use of FIU?