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USA US DRSN NATO Raytheon
Integrated Services Telephone
- wanted item
IST-2 is an integrated services desktop telephone
for secure/non-secure conversations,
introduced around 2003 by Raytheon
in St. Petersburg (Florida, USA)
and subsequently manufacturerd by
Telecore, Inc. in Richardson (Texas, USA).
It is intended for use on the US
Defense Red Switch Network (DRSN) [1]
and is therefore also known as a red phone.
The IST-2 itself does not feature encryption/decryption, but instead relies
on the bulk encryption features of the local PABX.
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The device has 50 software-defined buttons – in a 5 × 10 layout –
for direct access to a central office line (CO) or a local subscriber.
To the left of this direct access field is a numeric dial pad with the
regular 12 buttons, plus an extra row of red buttons for
precedence and priority override, similar to the red buttons on the
telephone sets of the old
AUTOVON/AUTOSEVOCOM networks.
The difference with the old AUTOSEVOCOM network
– which faced many problems and high cost –
is that communication over the twisted pair line
is digital rather than analogue (POTS).
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The IST-2 is only suitable for connection to a DRSN switch,
which allows its users to place secure as well as non-secure calls
directly, without installing encryption keys and/or using a
Crypto Ignition Key (CIK). In a DRSN network, security is handled
by the local switch, rather than by the individual terminals,
which makes setting up a call or a conference much easier for the users.
The IST-2 was introduced around 2003 and replaces the its predecessor
– the Raytheon IST – and the older
MLP-1A made by Electrospace Systems, that had been in use since 1983.
The IST-2 was phased-out around April 2011 during the presidency of
Barack Obama. It was replaced by two separate phones:
an Avaya/Lucent 8520T for non-secure calls through the regular White House
switch, and a Cisco 7975G Unified IP Phone ()
for secure calls [4].
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Presidential communications
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US President George W. Bush
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US President Barack Obama
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The image on the right shows US President Barack Obama (2009-2017)
using the IST-2 on his desk in the Oval Room at the White House.
The IST-2 on the President's desk was replaced in March or early-April
2011, by two modern phones: an Avaya/Lucent 8520T for non-secure calls,
and a Cisco 7975G Unified IP Phone with expansion module 7916
for secure calls through the Executive Voice over Secure IP network [4].
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Device Secure telephone Purpose Confidential telephone conversations over DRSN Model IST-2 Year 2003 Manufacturer Raytheon, Telecore NSN 5805-01-581-3868 Predecessor IST (Raytheon), MLP-1A (Electrospace Systems) Type Digital audio and data Encryption In PABX Line buttons 50 (expandible to 210 lines) Interface shielded 2-wire twised pair Network DRSN Data 57600 baud full-duplex Mounting Desk, wall Expansion PCMCIA
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© Crypto Museum. Created: Friday 05 April 2024. Last changed: Tuesday, 09 April 2024 - 09:15 CET.
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![IST-2 telephone set as shown on the cover of the manual [A]](img/ist2_thumb.jpg "image # ist2_large.jpg")
![IST-2 telephone set as shown on the cover of the manual [A]](img/ist2_angle_thumb.jpg "image # ist2_angle.jpg")
![IST-2 telephone set as shown on the cover of the manual [A]](img/ist2_angle.jpg)
