Results tagged #Pbx in Circuits
Homemade Phone PBX
Voicemail capacility (although not implemented, there are four ADCs that can be used to sample and record the phone audio) A storage volume ...
homepage pbx
...
build own pabx
The main power source is 220V AC, which is step-down into 24V and 72V. The18V DC is used for telephone system and 72V AC supply is used for ...