The Avaya Aura® system in domain 2 is configured to use Inter-PS federation to enable users and the Microsoft users to watch Avaya Aura® users in domain 1. Signaling for Microsoft users watching Avaya Aura® users in domain 1 is tandemed through the Presence Services in domain 2. All signaling is routing through Avaya Aura® Session Border Controller at the edges of each domain. Use of Avaya Aura® Session Border Controller is optional, since no message manipulation is required, but recommended to protect each domain from the public network
Following are the sets of routing configuration required:
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Inter-PS federation between the domain 1 and domain 2. For more information, see Checklist for configuring federation between two Presence Services clusters on different System Managers.
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Microsoft internal domain federation within domain 2 between the Avaya Aura® and Microsoft systems. For more information, see Microsoft Real Time Communication (RTC) Federation.
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Additional Session Manager routing configuration required to force Microsoft internal federation signaling into Presence Services in domain 2. For more information, see Configuring Microsoft Internal Domain Federation.