Configuring the Size of the Jitter Buffer for VoIP Subscribers

RTP packets can be cached in the jitter buffer for a defined time period. They will be transfered continuously from there to the receiver. Delays in the transmission and loss of packets can be compensated that way. The jitter buffer can be configured separately for subscribers and VoIP providers.

Configuration can be carried out as follows:

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Separately for subscribers

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Via the configuration manager

Requirements:

– VoIP channels (COMpact 3000 VoIP or VoIP channels purchased and activated in the Upgrade Center)

– Configuration manager, opened with sufficient authorisation

Open the page PROPERTIES > Internal subscribers > Subscriber properties > VoIP Settings.

In the list field at the top, select the subscriber in question by his name or number.

Enter a value in the Jitter buffer entry field. The following entries are possible:


		40 to 160: The size of the jitter buffer in milliseconds (duration of the audio signals). Lower values: A lower number of RTP packets can be cached in order to buffer disruptions or to compensate for them. Greater values: A greater number of RTP packets can be cached in order to buffer disruptions or to compensate for them.

Note: You can configure the jitter buffer for VoIP providers on the page CONFIGURATION > Voice over IP (VoIP) > VoIP provider > Provider configuration > Network.

Further steps:

– Save your settings before you leave the page.