Aastra-telecom 53I User Manual download pdf (Page 44)

Security Features

38 RN-001029-00, Rev 03, Release 2.1

IP Phone Release Notes 2.1

3 Click to save your changes.

Per-Line Configuration

1 Note: Setting a per-line SRTP configuration overrides the global SRTP configuration setting.

Click on Advanced Settings->Line <1-9>->RTP Settings.

2Set the “RTP Encryption” field to one of the following settings:

• SRTP Disabled: IP phone generates and receives nonsecured RTP calls on this line.

• SRTP Preferred: IP phones generates RTP secured calls, and accepts both secured and

non-secured RTP calls on this line.

• SRTP Only: IP phones generates and accepts RTP secured calls only on this line; all other calls

are rejected.

3 Click to save your changes.

Aastra Web UI

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Aastra-telecom 53I User Manual Page 44