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Avaya IP Deskphones Software Releases

Latest Release: J100 SIP 4.1.0.0 (Jan 2023)

11xx, 12xx and 2007 Series UNIStim Software Release 5.5

UNIStim Release 5.5 was made generally available in November 2012; Service Pack 5.5.1 was issued in August 2013; Service Pack 5.5.9 was issued in June 2019. This is the latest release of UNIStim software for installation on Avaya 11xx, 12xx, and 2007 IP deskphones and is recommended for new development.

Important The following end of sale and end of support dates have been announced:
Avaya IP Deskphone Models: 1110 Avaya IP Deskphone Models: 1120E, 1140E Avaya IP Deskphone Models: 1150E Avaya IP Deskphone Models: 1165E Avaya IP Deskphone Models: 1200 Series For all new development, Avaya recommends that developers use the latest available UNIStim software release.
Overview Downloads

Features in the new release

The UNIStim software release 5.5 can be installed on Avaya 2007, 1110, 1120E, 1140E, 1150E, 1165E, 1210, 1220, and 1230 IP Deskphones only.

UNIStim 5.5 includes the following new features:

  • UNIStim 5.5 adds support for HTTPS in addition to existing TFTP, FTP or HTTP protocols.
  • UNIStim 5.5 continues to improve the overall quality of the IP Deskphone software through the delivery of ongoing resolution of customer reports and Avaya identified work items.

Release history

Generally Available

Earlier Releases

Release Information Push and Web APIs

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Developer Documentation

The Push and Web API capabilities supported in UNIStim Release 5.5 are described in chapter 19 of the IP Deskphones Fundamentals document below, in the section on Telephony Features:

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