Panasonic KX-TDA100D Hybrid IP-PBX System. The Panasonic KX-TDA100 Hybrid IP-PBX System features voice over internet protocol (VoIP), QSIG digital networking allows basic call handling (outgoing and incoming), closed numbering routing, and CLIP / COLP / CLIR / COLR, automatic route selection (ARS) / least cost routing (LCR), reliable networking via T1 / E1, multi cell wireless integration E&M, mobile phone integration, TAPI 2 CTI interface (TAPI and CSTA), PC-phone PC-console, advanced call centre function, ISDN capability (BRI / PRI), centralised voice mail, 2 channel cell station to connect DPT interface port etc. It was designed not only to provide continued growth for your small-business, but also to provide your business the tools it needs for future growth. In business environments with employees that are constantly on the move or away from their desks, the Pansonic KX-TDA100 phone system offers state-of-the art wireless & wired technology, designed as part of the integrated phone-system instead of as add-on to the KX-TDA100 phone system. The Panasonic IP-Enabled KX-TDA series business telephony solution combines advantages of traditional telecommunications together with the convergence of IP technology-offering advanced features and flexibility to handle your company communication needs. These models can be easily upgraded to high-end KX-TDE series models.