T
T1/E1 Converter T1/E1轉(zhuǎn)換器
Telephone Sets 電話機(jī)
Time Division Multiple Access(TDMA) 分時(shí)多重進(jìn)接
Trunked Radio 中繼式無線電話機(jī)
Trunked Radio 中繼式無線電
T1/E1 Converter T1/E1轉(zhuǎn)換器
Telephone Sets 電話機(jī)
Time Division Multiple Access(TDMA) 分時(shí)多重進(jìn)接
Trunked Radio 中繼式無線電話機(jī)
Trunked Radio 中繼式無線電