SIP Trunking Drilldown

Communications Server 2007 R2

Microsoft Office Communications Server 2007 and Microsoft Office Communications Server 2007 R2 will reach end of support on January 9, 2018. To stay supported, you will need to upgrade. For more information, see Resources to help you upgrade your Office 2007 servers and clients.

Office Communications Server 2007 R2 enables basic call origination and termination using a Session Initiation Protocol (SIP) trunk to a service provider.

 

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