Siemens Standard, Advance, Advance Plus, Advance Conference Telephone Manual page 8

The Optiset E Control Adapter supports baud rates up to 19,200
bps for CTI applications. The option module does not support
asynchronous data calls or data communications parameters
such as hardware flow control (RTS/CTS). It does, however,
support AT commands for voice call control.
The Optiset E Control Adapter option module also has a
connector for an electret-style headset.
The RJ8 (4-pin) headset interface supports any electret-style
headset or carbon-style headset with a configurable power
amplifier module. The RJ8 connector also supports all of the
features associated with other Optiset E Headset Option
modules, such as the ACD Auto Answer Mode.
Optiset E Speech Adapter
The Optiset E Advance Conference telephone supports the
Optiset E Speech Adapter option. The Speech Adapter is a
voice recognition module that gives you the ability to replace
keyboard entries with spoken commands using any of the
existing voice inputs of the phone to which it is attached.
The Speech Adapter allows you to control the attached phone
locally by voice commands through the handset, headset, or
microphone for hands-free mode. Feedback to the user is given
through display messages, voice prompts, and tone signals. A
mix of key strokes and voice commands is possible, making the
Speech Adapter option very helpful in work places which
require real hands-free phone operation.
Optiset E Data Adapter
The Data Adapter lets you connect your phone to a computer or
terminal via a 25-pin EIA-232-E connection. You can make
asynchronous data calls by issuing AT commands from your
attached PC or terminal to your phone, much as you would to an
attached modem. This adapter supports baud rates up to 38.4
kilobytes per second (autobaud detection), simultaneous voice
and data communication, hardware flow control (RTS/CTS)
and full duplex operation. It also supports the Siemens
Application Programming Interface (API), data loopback for
customer service tests, and V.120 and DMI mode 2-Bit Rate
Adaptation.
Optiset E Headset Adapter
The Headset Adapter lets you plug one or two electret
microphone-type headsets into your phone. You can then make
and answer calls using a headset instead of the handset or the
phone's built-in microphone and speaker. This type of headset
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