The VoIP gateway also accepts incoming Outlook
Voice Access calls from the PBX. To make this clearer let??™s walk through a couple of examples.
First, let??™s take a look at voice-mail. A caller picks up the phone and dials your phone
number. The call comes inbound to your PBX and is routed to your phone and it rings. If
you do not answer your phone in a predetermined amount of time, the PBX routes the call
to the VoIP gateway. The VoIP gateway then hands the call over to the Exchange UM server.
The UM server will then record the voicemail for the intended receipt. Next the Exchange
UM server will send the voicemail to the hub-transport server which will in turn route the
voicemail to the correct mailbox on the mailbox server.
Integration with Exchange 2007 Unified Messaging ??? Chapter 10 317
Great, you now have a new voice mail. However, we??™ll pretend you??™re at a client location
with no Internet access. So, how do you check your voice mail? Remember, that message no
longer resides in a tradition voice-mail system; instead, it??™s waiting for your review in your
Exchange mailbox. No problem. You pull out your cell phone and dial the OVA number.
You then enter your mailbox number and pin code. OVA then presents you with a menu of
options. You simply say voice mail and OVA begins to play the new voice-mail message. After
hearing the voice-mail message, you decide you need to check your calendar. You speak into
the phone, saying the words calendar for today.
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