Microsoft Office 365 Exchange UM with Legacy PBX
AudioCodes Mediant Gateway 8 Document #: LTRT-40512
1.1 Focus of the Guide
This document focuses solely on the AudioCodes Mediant VoIP gateway features that are
required for interoperability with Office 365 Exchange Online UM.
The AudioCodes Mediant gateway may support additional characteristics that are not
described in this document. For a complete product description, refer to the AudioCodes
gateway documentation.
Figure 1-1: AudioCodes Gateway Interfacing between Legacy PBX and Office 365
Note: The gateway communicates with the PBX by using either QSIG or Simplified
Message Desk Interface (SMDI) via the serial RS-232 connection, or special in-
band DTMF digit patterns. This document focuses on QSIG integration. Contact
your AudioCodes sales representative for further information about other types
of integration.