# Configure Media Service (Packet Rate)

To configure packet rate:

1. From the Main menu, select (S) System maintenance, (R) Reconfiguration, (R) Reconfigure system, then (G) Offline Menu.

2. Select (B) Duplicate Active Configuration. The system copies the current (active) configuration. When copying is complete, the short form of the Offline menu appears.

All subsequent steps in this procedure – along with any other configuration entries – affect only the inactive configuration, and will take effect only after you activate the inactive configuration.

1. Select (V) Configure Media Service.

2. In the Media Service menu, select one of the following:

   - (F) Fixed Packet Rate: select this option to maintain a fixed packet rate of 20 ms. NOTE: If a call requiring a non-standard packet rate is made to the NuPoint UM system, it may result in audio distortion.

   - (V) Variable Packet Rate: select this option for MCD Release 4.0 (3300 ICP Release 10.0) and later to allow successful streaming of calls that may require a non-standard packet rate.

   Note: These selections are mutually exclusive - when you select one option, the other is automatically disabled.

3. To save your changes, exit to the NuPoint Voice Main menu. Configuration changes will not take effect until you have activated the inactive configuration.