Microsoft Office 365 Exchange UM with Legacy PBX
AudioCodes Mediant Gateway 14 Document #: LTRT-40512
3.3 Configure UM
Before communication can be established from a telephony solution (via the gateway) to
Office 365 Exchange Online UM, specific online Exchange Online UM configuration must
be performed. This consists of, at least, creating and configuring a Dial Plan and an IP
gateway. These are configuration objects that represent devices that are part of the
telephony solution.
3.3.1 Create a UM Dial Plan
A UM Dial Plan represents a set of fixed-length telephone numbers and the PBX (or
equivalent) to which they are attached. All Exchange users whose mailboxes are enabled
for Exchange Online UM must be associated with a UM Dial Plan.
In the Exchange Control Panel (ECP), create a new UM Dial Plan (as shown below).
To create a new UM Dial Plan:
1. Select the UM Dial Plans tab; the following screen appears.
Figure 3-1: Initial (Empty) UM Dial Plans List in Exchange Control Panel
2. Click on New… to create a new UM Dial Plan.
Figure 3-2: Specifying Properties for a New UM Dial Plan for a PBX