configured for the rec playback through mic spkr modes 6 and 7 these modes are similar to the rec playback to from the line modes 4 and 5 except that the audio is input from the microphone rather than a remote telephone and the audio is played back through a speaker instead of the remote telephone in mode 6 any audio picked up by the local microphone is digitized by the modem and then stored in the memory of the computer system in mode 7 the stored audio file is converted back into an analog format for playback on the ldspkr output pin of either safe 209 or 210 to either of the speakers 219 or 220 the message may be played back through the ldspkr output of safe1 209 and routed through line 601 to either the on board speaker or external speaker fig7 shows the schematic of how the detection and switching circuit is configured for the rec playback mic headset mode 8 this is basically the same as described above for mode 7 except that the audio signal is played back through the headset 223 fig8 shows the schematic of how the detection and switching circuit is configured for the telephone emulation mode 9 in telephone emulation the modem basically becomes a telephone standard voice signals received over a phone line is input to the modem the voice signals received by the modem are not digitized instead they are amplified and.