This manual helps you to optimise the usage of the IP telephone in combination with the PBX. Please use this manual at initial operation. Some features differ from the features described in the manufacturer's documentation.

The following pages describe the snom 821 system telephone.

We hope you enjoy using the telephones!
Subject to alterations
Version 2 / 09.2023 (en)

You have the option of voice encrypting (SRTP) your telephone calls. You can activate this function for your customer account via the Administration portal at any time.

1. Activate the function in the Administration portal.
2. Restart all telephones.
    Keep in mind that restarting may take a few minutes. During a conversation, a lock icon on the telephone display indicates that the encryption is activated.
⇒ The active call is now encrypted.

The basic function of Hot desking allows cancelling the registration of existing users and registering new users to your Snom end device.This is useful when employees frequently change their workstation but do not take along their end devices. After completing the registration process, your configuration is automatically transferred to a new telephone.

1st step: Cancelling the registration of the current extension
1. Click on Menu.
2. Click on Telephone settings.
3. Click on Cancel registration of an extension.
4. Click on Confirm.
⇒ The registration of the extension is cancelled and the telephone is restarted. This may take some time.

2nd step: Registering a new extension
1. Click on Menu.
2. Click on Enter extension number.
3. Click on Confirm.
4. Enter your voicemail PIN.
5. Click on Confirm.
⇒ The new extension is registered now. This may take some time.