About Skype for Business servers

Pexip Infinity uses Skype for Business / Lync* servers to route outbound MS-SIP calls.

Outbound calls are made from Pexip Infinity when:

You can configure the addresses of one or more SfB/Lync servers within Pexip Infinity. These can be Front End Servers or a Director; they cannot be Edge Servers.

Within an on-prem Skype for Business / Lync environment, you must then associate a specific SfB/Lync server with a System location, Call Routing Rule or Virtual Reception to instruct Pexip Infinity to use that SfB/Lync server when it places an outbound MS-SIP call from a Conferencing Node in that location, or when it matches that routing rule.

Within a public DMZ Skype for Business / Lync deployment, you must ensure that a Pexip Infinity location is not configured to route calls to a specific SfB/Lync server. This is to ensure that each Conferencing Node uses DNS to locate an appropriate SfB/Lync system via which to route outbound calls.

To add, edit or delete SfB/Lync servers, go to Call control > Lync / Skype for Business servers.

The available options are:

Option Description
Name The name used to refer to this SfB/Lync server in the Pexip Infinity Administrator interface.
Description An optional description of the SfB/Lync server.
Address The IP address or FQDN of the SfB/Lync server. This can be a Front End Server or Director; it must not be an Edge Server.

The IP port on the SfB/Lync server to which the Conferencing Node will connect.

Default: 5061.


The IP transport used to connect to the SfB/Lync server.

Default: TLS.

To associate a SfB/Lync server with a System location, go to Platform > Locations, to associate it with a Call Routing Rule, go to Services > Call routing, and to associate it with a Virtual Reception that is acting as an IVR gateway to scheduled and ad hoc SfB/Lync meetings, go to Services > Virtual Receptions.

For more information on integrating Pexip Infinity with SfB/Lync, see Integrating Skype for Business with Pexip Infinity.

* Note that where this documentation refers to "SfB/Lync", it represents both Microsoft Skype for Business and Lync unless stated otherwise.