fax modem; data fax modem
02:04:30
logical comparison
02:04:13
ideal attenuator
02:04:12
full load
02:03:09
voice frequency
02:03:08
centralized management
02:02:54
communucation network
02:02:09
supportability
02:02:09
sequential test
02:01:45
bimetal thermometer
02:01:41
Fresnel region
01:59:51
backup procedure