140 Chapter 9 Configuring addressing conventions and messaging service defaultsGetting there: Messaging → Dialing Information → Dialing TranslationssectionDefining address prefixes for both DTT and DTFDTT and DTF addressing conventionsWhen you configure Delivery to Telephone (DTT) or Delivery to Fax(DTF) addressing conventions, consider the following requirements andrecommendations:• dialing prefixes and codes• synchronizing the DTT prefix and the dialing code• prefixes for internal numbers• a DTT prefix for each dialing scenarioDialing prefixes and codesTo ensure that the DTT/DTF service is activated, you must define one ormore dialing prefixes. Publish these prefixes so users can specify themduring message composition and when entering addresses in distributionlists.Cautions• For each DTT prefix, you must also define an associated dialing code.When a user enters a DTT prefix, the system actually replaces the prefixthe user entered with the associated dialing code. The dialing code isthe public network access code that the system needs to place the call.• DTT prefixes cannot conflict with mailbox numbers. If you have acoordinated dialing plan (CDP), the prefix can be the same as the initialnumber(s) of a CDP steering code, but cannot be the same as the entirecode. For example, if one of your steering codes is 566, 5 or 56 can beused as a DTT prefix, but 566 cannot be used. For these cases, youneed an arbitrary prefix that does not conflict with other numbers for thesystem to remove and replace with a dialing code to create a dialablenumber.Synchronizing the DTT prefix and the dialing codeMake the DTT prefix and dialing code the same wherever possible. Thissimplifies message addressing for users because the numbers users enterwhen addressing a DTT message are exactly the same as the numbers theydial when placing an external call.ExampleIf the public network access code is 9, define both the DTT prefix and thedialing code as 9.Nortel CallPilotAdministrator GuideNN44200-601 01.11 Standard5.0 9 November 2007Copyright © 2007, Nortel Networks.
