Microsoft Datacenter
Customer’s Premises
Public
Telephone
Network
Exchange
Server Roles
Mailbox
Lync, PBX+GW
or IP-PBX
Hub Transport
Unified Messaging
Phones
and users
Voice-over-IP
network
border
elements
Public IP
network
Client Access
Exchange Blog
Microsoft Datacenter
Customer’s Premises
Lync Mediation
Server
Public
Telephone
Network
Exchange
Server Roles
Lync Servers
Mailbox
VoIP Gateway
Hub Transport
Unified Messaging
Corporate IP
network
Lync Client
Lync Edge
Server Pool
Lync Edge
Server
Public IP
network
Client Access
Microsoft Datacenter
Contoso’s Premises
PBX (non-VoIP)
Exchange
Server Roles
VoIP
Gateway
Mailbox
Hub Transport
Unified Messaging
Internal phones
(PBX extensions)
Session
Border
Controller
Session Client Access
Border
Controller
Public IP
network
Public
Telephone
Network
Session
Border
Controller
IP - PBX
Private IP
network
CISCO IP PHONE
7905 SERIES
1
2
ABC
4
GHI
5
JKL
3
DEF
6
MNO
4
7
8
9
PQRS
TUV
WXYZ
CISCO IP PHONE
7905 SERIES
7
PQRS
*
0
#
*
1
2
ABC
4
GHI
5
JKL
3
DEF
6
MNO
4
7
8
9
PQRS
TUV
WXYZ
7
PQRS
*
0
#
*
Internal IP phones
(IP-PBX extensions)
Northwind’s Premises
Phase On-Premises
Comments
Repetition
Plan
• Decide on number, type and location of VoIP
Gateways and SBCs
• Create DNS entry (or entries) for SBCs
• Obtain certificates for SBCs
Per organization
Arrange on-prem equipment
• Attach VoIP Gateways (if required) to PBXs and
SBCs to private IP network
Create UM Online system config
• Use Exchange Control Panel or Remote
PowerShell to create UM Dial Plans, etc.
Configure on-prem equipment
• Set up call routing from PBX to SBC (via GW)
and vice versa.
• Configure VoIP routing through SBC to and from
UM Online.
UM-enable mailbox
• Use Exchange Control Panel or Remote
PowerShell to UM-enable mailbox.
Configure on-prem account
• Set up voice mail call forwarding for user
Online
Per UM Dial Plan
Per UM user
Exchange 2010 UM Telephony Advisor
Vendor
Product/Version
Type
Acme Packet
Net-Net 4500 SCX6.2.0 MR-3 Patch 2
SBC
AudioCodes
Mediant 1000 MSBG 6.00AL.014
SBC/VoIP Gateway
Ingate
SIParator 19
SBC
NET
VX1200 4.7.2v47
SBC/VoIP Gateway
Exchange Online Plan 2
North America
Europe
Asia/Pacific
Latin America
PBX or IP PBX
Private Beta* (now)
Private Beta* (now)
Private Beta* (now)
GA + 6 mo.
Lync
Private Beta (now)
Public Beta
GA
GA + 6 mo.
Ecuador, Guatemala, India, Nigeria, Philippines, Qatar, South Korea, Sri Lanka, Thailand, Uruguay
private beta documentation
Migration of UM-enabled mailboxes is supported. However,
unless rich coexistence between on-prem and Online
organizations is used, at a minimum the UM PIN will be reset
when the mailbox is moved.
There will be some on-prem configuration required to
ensure that call forwarding to voice mail goes to UM Online,
but voice mail downtime should be minimal.
That’s really a question for the other unified messaging
vendor. Current versions of these products won’t work directly
with Exchange Online mailboxes. However, you may be able to
use SMTP to forward voice messages (created on-prem) to the
appropriate cloud mailboxes, with an inferior user experience.
Yes, if you buy the correct Office 365 Enterprise Plan, and the
PBX is supported by Exchange UM. It’s even possible to use a
single Exchange Online mailbox to take voice mail for a user
who uses Lync, but also has an old-style PBX phone.
Yes. Although there is no explicit mention of geographical
regions in the UM Online host names, the DNS resolution of
these names is sensitive to the requesting IP address and will
direct all traffic to the appropriate region.
We’re testing these scenarios at the moment. In principle,
both on-premises and hosted fax services should work with
Exchange Online UM, if they are interoperable with UM onprem. Full details will be published when testing is complete.