See Also
Topic Last Modified: 2011-04-14
Media bypass settings apply globally across a Microsoft Lync Server 2010 deployment. Media bypass allows calls to bypass the Mediation Server. For details on when to use Media bypass, see Media Bypass in the Planning section.
You can enable and configure media bypass from the Lync Server Control Panel.
To enable and configure media
bypass
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From a user account that is a member of the RTCUniversalServerAdmins group (or has equivalent user rights), or is assigned to the CsAdministrator role, log on to any computer in your internal deployment.
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Open a browser window, and then enter the Admin URL to open the Lync Server Control Panel. For details about the different methods you can use to start Lync Server Control Panel, see Open Lync Server Administrative Tools.
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In the left navigation bar, click Network Configuration and then click Global.
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On the Global page, click the Global configuration. There is always only one configuration, and it is always named Global.
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On the Edit menu, click View details.
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On the Edit Global Setting page, click the Enable media bypass check box.
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Select one of the following options:
- Always bypass Select this option to
attempt media bypass on all calls. This option will be unavailable
if call admission control (CAC) is enabled. If CAC is not enabled,
select this option in the following situations:
- There is no need for bandwidth control.
- There is no need for fine-grained configuration to determine
when bypass should happen.
- There is full connectivity between gateways and clients.
- There is no need for bandwidth control.
- Use sites and region configuration If
CAC is enabled, this option is selected by default and cannot be
changed. When this option is selected, network configuration sites
and regions will be used to determine when media bypass is
possible. If you select this option, you can choose to enable
bypass for sites that are not mapped. Click the Enable bypass
for non-mapped sites check box only if you have one or more
large sites associated with the same region that do not have
bandwidth constraints (for example, a large central site) and you
also have some branch sites associated with the same region that do
have bandwidth constraints. When you enable bypass for non-mapped
sites, configuration is streamlined because you specify only the
subnets associated with the branch sites rather than needing to
specify all subnets associated with all sites. We recommend that
you do not select the Enable bypass for non-mapped sites
check box if CAC is enabled.
- Always bypass Select this option to
attempt media bypass on all calls. This option will be unavailable
if call admission control (CAC) is enabled. If CAC is not enabled,
select this option in the following situations:
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Click Commit to save your changes.