In 2002 the IPT1020-SD VoIP 20-button phone became the only 1000-series phone to ever be produced, however it was a leap forward for Toshiba – adding a VoIP phone to the previously all-digital phone lineup.

In 1992 the first models in the 2000-Series Digital phones were built for the DK systems and then migrated to the CTX/CIX systems to eventually include the 2000-Series VoIP phones released in 2004.

In 2002 3000-series digital phones became the third generation of digital phones, providing enhancements such as the speakerphone allowing placing and receiving a call without lifting the handset.

In 2005 the 3200-series digital phones replaced the 3000-series with new styling like the Toshiba 2000-series VoIP phones, including a silver inset around the LCD display. Functionally the 3000-series and the 3200-series are the same.

In 2011 the 2000-series cordless phone portfolio was enhanced with the addition of the Toshiba IP4100 SIP DECT wireless telephone. The IP4100 DECT mobility solution can support up to 200 handsets and 40 base antennas.

In 2007 the 5000-series Digital Telephones replaced the 3200-series with new models that include full-duplex speakerphone, backlit LCD, and LCD key labels. The 5000-series VoIP phones replaced the 2000-series in the following year, 2008.

Several models of GN Netcom and Jabra headsets, both corded and wireless, are certified to work on Toshiba Digital and VoIP phones.