D all the way! Remote access is where it's at. Although, I do wonder if the answer would be different if the question mentioned something about Webex. You know how those cloud services can be tricky.
Hmm, I was thinking B, but D makes more sense. Though I'm still a bit confused about the whole PSTN calling part. Maybe I need to brush up on my Cisco UCM knowledge.
D is the correct answer. MRA allows users to access Cisco UCM collaboration services from off-premises networks. This is a really useful feature for remote workers.
Cornell
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