Introduction 1-9
1. Introduction
CTI/Headset Combo Option
The CTI/Headset Combo module provides your ROLMphone 600
series telephone with connection for:
• a PC running a dialing application
• a standard electret headset or an enhanced wireless headset
When connected to a PC, the module allows the PC application to dial
and answer phone calls using standard AT commands.
The CTI/Headset Combo module also allows you to use electret or
enhanced wireless headsets. Electret headsets do not need the
additional headset adapter (or amplifier) required by carbon headsets.
Enhanced wireless headsets provide special features such as on-hook/
off-hook control.
Figure 1-8. CTI/Headset Combo Option