Avaya 9600-series IP deskphones are 15 different desk handset devices that are used for unified communications. The phones are compatible with the Avaya Aura platform of products and IP office systems. The systems add high-quality voice codecs like the G.722 codec and new menus over older IP phone series. The 9620 includes 16 MB of flash memory and the 9630 includes 32 MB of flash memory. The model 9620L-PDB IP Deskphone and the 6220T-TSG-DD are special use phones that have been specifically tested to meet the Committee on National Security Systems type accepted class B certification for use in Sensitive Compartmented Information Facilities (SCIF). History In 2006 the phone series started out with release 1.0 and only ran H.323 software and started with just the 9620 and 9630 phones. These phones were the follow on to the 4600 series and continued to use the 46xxsettings.txt configuration files for customer settings. In 2007 the 9610 and 9650 phones were added and the "G" suffix models 9630G and 9640G identified models with gigabit Ethernet interfaces. By the beginning of 2009 there were 11 different models. The 9670G was added and models with no suffix, "G" suffix, and "L" suffixes. By the end of 2009 a "C" suffix was added and expanded the list to 15 different phones. Security In 2006 the phones added a client to give them the ability to create a VPN tunnel to IPSec compliant VPN gateways from other vendors. The phones are certified for operation within military networks by the Joint Interoperability Test Command testing labs. Firmware In 2006 a firmware upgrade was made available for free for this series of phones adding the ability to use the phone with all SIP phone systems. The book SIP Security has an extensive section covering security of the 9600-series phones. SIP is now considered the de facto standard for connecting all unified communications including VoIP end devices. Firmware release 2.0 also provides Secure Real-time Transport Protocol (SRTP) and Transport Layer Security (TLS). In 2009 firmware version 3.0 and 3.1 were released adding the ability to display JPG and JPEG images as screen savers, and supporting multicast receive audio. With the 3.1 firmware release these phones have the ability to create a VPN connection back to a corporate network to allow working remotely with a secure connection back into the office network. The VPN client built into the phones supports Avaya