Publication historyJune 2005 This is the Standard 3.0 issue of the Digital Telephone IPAdapter Installation and Administration Guide (NTP 555-8421-211). This document provides product descriptions,planning, installation, configuration, administration, andtroubleshooting information for product release 1.6 of theDigital Telephone IP Adapter unit.January 2005 This is the Standard 2.1 issue of the Digital Telephone IPAdapter Installation and Administration Guide (NTP 555-8421-211). This document provides product descriptions,planning, installation, configuration, administration, andtroubleshooting information for product release 1.5 of theDigital Telephone IP Adapter unit.July 2004 This is the Standard 2.0 issue of the Digital Telephone IPAdapter Installation and Administration Guide (NTP 555-8421-211). This document provides product descriptions,planning, installation, configuration, administration, andtroubleshooting information for product release 1.5 of theDigital Telephone IP Adapter unit.October 2001 This is the Standard 1.1 issue of the Digital Telephone IPAdapter Installation and Administration Guide (NTP 555-8421-211). This document provides product descriptions,planning, installation, configuration, administration, andtroubleshooting information for the product release 1.3 of theDigital Telephone IP Adapter unit.September 2001 This is the Standard 1.0 issue of the Digital Telephone IPAdapter Installation and Administration Guide (NTP 555-8421-211). This document provides product descriptions,planning, installation, configuration, administration, andtroubleshooting information for product release 1.3.0 of theDigital Telephone IP Adapter unit.