Introduction

Secure Voice Transmission

You can set up a secure connection with optiPoint 410/420 advance S V7.0 phones if the receiving phone also has the capability. The voice transmis- sion is encrypted; it is decrypted in the receiving party’s telephone. Even the signaling for call setup and the exchange of encryption information oc- cur over a secure connection. The phones must have valid registration on an SIP server.

During secure voice transmission a lock symbol is displayed on the phone (also see page 23)

Features

Four-line alphanumeric display

Time and date indication

Speakerphone and loudspeaker

Redial and storage of last 20 numbers

On-hook dialing

Menu texts in the national language

18 and/or 19 (optiPoint 410 advance S V7.0) function keys which are all programmable on two levels

3 dialog keys for menu navigation

Assignment of selected destination numbers to dialing keys

Display of the caller’s phone number or name

Call Deflection, Consultation, Call Transfer, Toggle, Call Holding

Call Forwarding

Conferencing

Password-protected user settings

Variable ringer tone, volume, and sequence

Simultaneous ringing, which alerts you to incoming calls at more than one location

Telephone Types

The administrator can set up the optiPoint 410/420 advance S V7.0 as:

a single-line telephone

a multiline telephone

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Siemens OPTIPOINT420, OPTIPOINT410 user manual Features, Telephone Types, Secure Voice Transmission