Configure Jitter Buffer

This topic describes how to configure jitter buffer on Yeastar P-Series Cloud Edition.

Background information

If you have networking issues like packet loss or packets arriving out of order, you can enable jitter buffer to improve call quality.

Procedure

  1. Log in to PBX web portal, go to PBX Settings > Jitter Buffer.
  2. Enable Jitter Buffer.
  3. To enable jitter buffer for trunks, select the desired trunks from Available box to Selected box.

    The outbound audio through the selected trunk will be dejittered on the other side.

  4. To enable jitter buffer for extensions, select the desired extensions from Available box to Selected box.

    The received audio on the selected extensions will be dejittered.

  5. In the Implementation drop-down list, select the implementation of jitter buffer.
    • Adaptive: Adapting to network's delay, the adaptive jitter buffer has a variable size and the packets leaving the jitter buffer have a variable delay. If you choose the option, specify the adjustment size and the max jitter buffer size as follows.
      • Adaptive Adjustment Size (ms): The size of each adaptive adjustment of jitter buffer. The default value is 50. If you retain the default value, the jitter buffer size will be adjusted dynamically based on current network condition. It will start from 0 ms and grow at a size of 50 ms each time.
      • Max Jitter Buffer Size (ms): The maximum value of adaptive jitter buffer. The default value is 200.
    • Fixed: The fixed jitter buffer has a fixed size and the packets leaving the jitter buffer have a constant delay.

      If you choose the option, enter a value in the Jitter Buffer Size (ms) field. The default value is 200.

  6. Click Save and Apply.