1.3 SYSTEM BASICS28 Installation Manualforwarded, and recognize what the caller wants to do. Some features are available only withDPT Integration (Remote Call Forwarding Set, Live Call Screening, Two-Way Recording, Two-Way Transfer, One-Touch Two-Way Transfer (available only with KX-TDA/KX-TAW series),Direct Mailbox Access, Intercom Paging, Auto Configuration, Caller Name Announcement[system/personal], Caller ID Call Routing, DID Call Routing, Personal Greeting for Caller ID,Time Synchronization with PBX, Toll Saver).1.3.4 Installer Equipment and Software RequirementsThe installer must have a personal computer or data terminal equipped with terminalemulation software. We suggest that you use something like HyperTerminal by HILGRAEVE.Use the personal computer to program the VPS. Terminal emulation software enables thekeyboard to be used as a data entry device.While both the personal computer and data terminal are working, the personal computerallows screens to be saved in a file throughout the process. It is often helpful to retrieve thesefiles later if technical support is needed.1.3.5 SpecificationsTable 1-3Compression Rate: 32 KbpsPorts (maximum): • KX-TVS125: 6 ports• KX-TVS225: 12 ports• KX-TVS325: 24 portsVoice Storage (approximate): • KX-TVS125: 32 h• KX-TVS225: 64 h• KX-TVS325: 128 hCustom Services: 100Message Retention: 1 to 30 days or unlimitedNumber of Mailboxes: • KX-TVS125: 62 Subscriber and 2 ManagerMailboxes• KX-TVS225 and KX-TVS325: 1022Subscriber and 2 Manager MailboxesNumber of Messages per Mailbox: 100 maximum (programmable)Internal Modem (KX-TVS325 only): Maximum data transfer rate at 33600 bps.