January 1998 PBL 388 13 Voice-switched Speakerpho.
Ericsson
PBL38813 - Voice-switched Speakerphone Circuit with built in loudspeaker amplifier
January 1998 PBL 388 13 Voice-switched Speakerphone Circuit with built in loudspeaker amplifier Description. The PBL 388 13 contains all the necessar.