Toa VS-900 - Manual (Page 16)

1-6
CHAPTER 1. SUBSTATION OPERATION
2.4. Conversation Method
[RS-150, RS-160, RS-170, and RS-180]
• The other party's voice is heard from the speaker.
• Your voice is not sent out while the other party is talking.
• Speak after the other party finishes talking.
• While the other party is not talking, the substation speaker will function as a microphone to convey your
voice. [This method of communication is referred to as a "Talk-Back method."]
[RS-190]
Conversation method differs depending on the other party's conditions as stated below.
• When communicating with a master station with the handset on-hook or an outside line telephone, the Talk-
Back method is used.
• When communicating with a master station with the handset off, the handsfree simultaneous conversation
method is used.
[RS-191]
• Similar to an ordinary telephone, the handset simultaneous conversation method is used.
2.5. Substation Priority Level
Any substation can be registered as an "Emergency substation" by system programming at the time of
installation. The Emergency substation is given priority when calling the master station (telephone).