Voice Function Alternatives - AOpen FM56 Manual

4.8 Voice Function Alternatives

1. AOpen Sound Card (recommanded)
Simply connect the cable from modem to AOpen Sound Card. User can get all the voice
function including message playing and recording through sound cards.
2. SpeakerPhone and MicroPhone
Connect SpeakerPhone and MicroPhone to modem. User can also get voice performance.
NOTE:
Any commercially available microphone is usable.
For the speaker, any 8 ohm speaker rated around 1 Watt can
be driven directly by the audio output. An amplifier is
required if you need a higher output volume.