8 Chapter 1 About CallPilot Message NetworkingN0008713 01Digital and AMIS networkingMessage Networking uses two types of networking:Digital Networking• transfers messages using an internet or intranet connection using Voice Profile for InternetMail (VPIM) to support interconnection to equipment from Nortel Networks and othervendorsAMIS• supports an analog transfer protocol that does not require any formal data networkingarrangementsAbout Digital NetworkingDigital Networking links CallPilot and other voicemail systems at different locations. DigitalNetworking lets users at different sites exchange voice and fax messages on a network connectedby Transmission Control Protocol/Internet Protocol (TCP/IP). Digital Networking uses SimpleMail Transfer Protocol (SMTP) to exchange the messages.Fax messages can be sent and received only on Business Communications Manager systems thathave the Fax option installed. Fax is not available on CallPilot 100/150.How Digital Networking worksDigital Networking provides voice and fax messaging to mailboxes at different sites on a network.Each CallPilot site on the network must have Digital Networking installed to send, receive or replyto network messages.Network voice messaging occurs between mailboxes at different sites. For example, a messagerecorded at an office in Miami, Florida can be transferred directly to the appropriate mailbox atVancouver, British Columbia.Each site on a network is assigned a unique Fully Qualified Domain Name (FQDN). The FQDNdistinguishes a site from every other site on the network. An FQDN is the full name of the site,including all subdomain and domain names, separated by periods. For example,arabians.horse.com is an FQDN.If you use Digital Networking and you do not use DNS to resolve domain names, you canconfigure your system and client computers to use an IP address only. How to do this is explainedin Chapter 2.Note: Any voice message that you use send over the Internet using Digital Networkingcan be subject to interception by unauthorized parties.