4.1 Guidelines for APT/DPT Integration90 Installation Manual4.1 Guidelines for APT/DPT Integration4.1.1 What is APT/DPT Integration?In order for the VPS to function, it must be integrated with the PBX it serves. The type of integrationthat is used determines how voice (caller messages, VPS prompts, etc.) and data (extension status,button presses, etc.) are sent between the VPS and the PBX.Unlike Inband Integration, when the VPS and PBX use APT or DPT Integration, information is sentbetween the PBX and VPS digitally. This allows the VPS to respond quickly and efficiently.Additionally, configuring a Panasonic PBX for APT or DPT Integration is generally much easier thanconfiguring a PBX for Inband Integration.4.1.2 When to Use APT/DPT IntegrationThe type of PBX and/or the type of extension cards installed in the PBX will determine whether APTor DPT Integration can be used. See 1.1.7 Compatible PBXs for more information.4.1.3 APT/DPT Integration FeaturesDuring APT/DPT Integration, the PBX sends information to the VPS which lets the VPS know fromwhere and why a call is sent to the VPS, and identifies the extension or outside caller that is calling.This communication allows features that are only available with APT/DPT Integration, describedbelow:Feature DescriptionCompatibleIntegration TypeAPT DPTAuto Configuration The VPS knows what extension names/numbers exist on the PBX and createsmailboxes for each extension automatically.Also sets the VPS clock with data from thePBX clock.Automatic Login*1 Subscribers can access their mailboxeswithout dialing their mailbox numbers.Caller ID CallRouting*2The VPS automatically sends calls frompreprogrammed Caller ID numbers to thespecified extension, mailbox, or CustomService.Caller ID Screening When the VPS transfers a call to anextension, the VPS announces theprerecorded name of the caller, allowing theextension user to know who is calling.
