Which two enterprise presence domains can federate with Cisco IM and Presence by using SIP? (Choose two.)
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A. B. C. D. E. F.AB.
Microsoft Lync and OCS support presence services with sip as well as AOL so to sip is easy to troubleshoot and feasible for signaling thats why cisco federate these with sip.
The correct answers for this question are B) Microsoft OCS and C) IBM Sametime.
Federation is a mechanism that allows users from different organizations to communicate with each other through instant messaging and presence (IM&P) services. Cisco IM&P can federate with other IM&P systems using SIP/SIMPLE protocol.
Let's go through the given options one by one to understand which ones can federate with Cisco IM&P using SIP:
A) AOL: AOL uses the OSCAR protocol for instant messaging, which is not compatible with SIP/SIMPLE protocol. Therefore, AOL cannot federate with Cisco IM&P using SIP.
B) Microsoft OCS: Microsoft OCS (Office Communications Server) is an enterprise IM&P system that uses the SIP/SIMPLE protocol. Cisco IM&P can federate with Microsoft OCS using SIP, so this option is correct.
C) IBM Sametime: IBM Sametime is an enterprise IM&P system that uses the SIP/SIMPLE protocol. Cisco IM&P can federate with IBM Sametime using SIP, so this option is correct.
D) Cisco WebEx Connect: Cisco WebEx Connect (formerly known as Cisco WebEx Messenger) is a cloud-based IM&P service that uses the Extensible Messaging and Presence Protocol (XMPP). It can also support SIP, but the federation is not currently available. Therefore, this option is incorrect.
E) Google Talk: Google Talk is a consumer IM service that uses the XMPP protocol. It does not support SIP, so it cannot federate with Cisco IM&P using SIP. Therefore, this option is incorrect.
F) Cisco Unified Presence 8.X Releases: Cisco Unified Presence is the predecessor to Cisco IM&P. The 8.X releases of Cisco Unified Presence use the SIP/SIMPLE protocol and can therefore federate with Cisco IM&P using SIP. This option is correct.
In summary, the two enterprise presence domains that can federate with Cisco IM&P by using SIP are Microsoft OCS and IBM Sametime.