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Chapter 2 Configuring your system for Unified Messaging
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IMAP lets subscribers check for messages from any location with an Internet connection. IMAP
also lets subscribers access messages from multiple locations. IMAP is a method of accessing
electronic mail or bulletin board messages that are kept on a shared mail server. IMAP lets a client
e-mail program access remote message stores as if they were local. For example, e-mail stored on
an IMAP server can be accessed from a computer at home, a workstation at the office, and a
notebook computer while traveling, without the need to transfer messages or files between these
computers.
LDAP
Lightweight Directory Access Protocol (LDAP) is a set of protocols for accessing information
directories. LDAP supports TCP/IP, which is necessary for any type of Internet access. LDAP lets
a client search for and use information entries on a directory server, such as the Business
Communications Manager. For example, a typical entry in the CallPilot directory contains
attributes of a subscriber such as name, telephone number, and CallPilot mail address. Internet
clients can use LDAP to query address book information from the CallPilot directory, perform
address resolution, or search for specific subscribers (if this functionality is implemented by the
Internet client).
SMTP
Simple Mail Transfer Protocol (SMTP) is a protocol for sending e-mail messages between servers.
Most e-mail systems that send mail over the Internet use SMTP to send messages from one server
to another. These messages can then be retrieved with an e-mail client using IMAP. SMTP is also
generally used to send messages from a mail client to a mail server. This is why you must specify
both the IMAP server and the SMTP server when you configure your e-mail application.
Since Voice Profile for Internet Mail (VPIM) Networking also uses SMTP, you do much of the
configuration for IMAP in the same places you set up VPIM Networking.
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.
Note:
Unified Messaging clients require LDAP authentication of the CallPilot
mailbox directory number and password to begin a search on a Business
Communications Manager LDAP directory.
