
Chapter 2 Configuring your system for Unified Messaging 13
CallPilot Unified Messaging Installation and Maintenance Guide
Configuring environments without a DNS
The Domain Name System (DNS) is an Internet service that translates domain names into IP
addresses. Because domain names are alphabetic, they are easier for subscribers to remember. The
Internet is based on IP addresses. Every time you use a domain name, therefore, a DNS must
translate the name into the corresponding IP address. For example, the domain name
www.example.com can translate to 198.105.232.4.
If one DNS server does not know how to translate a particular domain name, it asks another one,
and so on, until the correct IP address is returned.
Unified Messaging uses Domain Name resolution, which is provided by a DNS. If your network
does not have a DNS, then you must configure Unified Messaging to use IP addresses.
For Internet Mail clients, the format for addressing a message is <SMTP/VPIM prefix><Mailbox
number>@<BCM HOST name>.localdomain.
Configuring Unified Messaging with IP address only
If you do not use DNS to resolve domain names, configure the Business Communications
Manager system and client computers to use an IP address only:
1 Ensure Business Communications Manager is not configured to use DNS.
2 Ensure that Business Communications Manager is configured with a host name. If it is not,
enter the host name on the Business Communications Manager system.
3 Configure computers running Unified Messaging with the IP address of the Business
Communications Manager system.
To check that Business Communications Manager is not
configured to use DNS
1 Start Unified Manager.
2 From the Services menu choose DNS.
3 Ensure that the Primary (& Sec.) Server IP Addr field is empty. If it is not, delete any entries
and press the Enter button to save your changes.
To check that a Host Name is entered on the Business
Communications Manager system
1 Start Unified Manager.
2 Choose System from the list box.
3 In the System Name box check that a system name is entered. If one is not entered, enter one
now. A system name can be any name (for example, myCompany).
4 Press the Enter button to save your new system name
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