Applies to: Exchange Server 2013, Exchange Online
Topic Last Modified: 2012-11-09
You can configure a Unified Messaging (UM) IP gateway with either an IP address or a fully qualified domain name (FQDN). When you create a UM IP gateway, you must define the IP address or the FQDN configured on the VoIP gateway, IP PBX, or session border controller (SBC) that you're using. You can change the IP address or FQDN after the UM IP gateway is created.
If you create a UM IP gateway using an FQDN, you must create the appropriate HOST (A) records in your DNS forward lookup zone. If you create a UM IP gateway using an FQDN, and the DNS configuration for the UM IP gateway is changed, you must disable and then enable the UM IP gateway to make sure that its configuration information is updated correctly.
If you want to use mutual Transport Layer Security (mutual TLS)
between a UM IP gateway and a dial plan operating in either SIP
secured or Secured mode, you must configure the UM IP gateway with
an FQDN. You must also configure it to listen on port 5061 and
verify that the VoIP gateway, IP PBX, or SBC has also been
configured to listen for mutual TLS requests on port 5061. To
configure a UM IP gateway, run the following command:
Set-UMIPGateway -identity MyUMIPGateway -Port
5061.
For additional management tasks related to UM IP gateways, see UM IP Gateway Procedures.
What do you need to know before you begin?
- Estimated time to complete: 2 minutes.
- You need to be assigned permissions before you can perform this
procedure or procedures. To see what permissions you need, see the
"UM IP gateways" entry in the Unified Messaging
Permissions topic.
- Before you perform these procedures, confirm that a UM dial
plan has been created. For detailed steps, see Create a UM Dial
Plan.
- Before you perform these procedures, confirm that a UM IP
gateway has been created. For detailed steps, see Create a UM IP
Gateway.
- For information about keyboard shortcuts that may apply to the
procedures in this topic, see Keyboard Shortcuts in
the Exchange Admin Center.
 Tip: |
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| Having problems? Ask for help in the Exchange forums. Visit the forums at: Exchange Server, Exchange Online, or Exchange Online Protection. |
What do you want to do?
Use the EAC to configure an FQDN
- In the EAC, navigate to Unified Messaging > UM IP
Gateways, select the UM IP gateway that you want to modify, and
then click Edit
.
- On the UM IP gateway page, in Address, enter the
FQDN for the VoIP gateway, PBX enabled for SIP, IP PBX, or SBC.
- Click Save.
 Important: |
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| When you use an FQDN instead of an IP address on the UM IP gateway, verify that the correct DNS records have been created. |
Use the Shell to configure an FQDN
This example configures a UM IP gateway named
MyUMIPGateway with an FQDN named
voipgateway.contoso.com.
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Set-UMIPGateway -Identity MyUMIPGateway -Address voipgateway.contoso.com |
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This example configures a UM IP gateway named
MySBC with an FQDN of sbc.contoso.com and listens for
SIP requests on TCP port 5061.
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Set-UMIPGateway -Identity MySBC -Address sbc.contoso.com -Port 5061 |
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