• For government, military, and commercial power users.
    Series –
    a Thoughtful
  • TLS and SRTP encryption, IPv4 and IPv6 protocols.
  • 8030X Button Expansion Module

From the ergonomically designed handset to simplified labeling, the 8600 Series shows a thoughtful evolution from our industry-standard 6200 Series. Automatic set-up capabilities and simple programming make the phones quick to install and easy to use. Reliable and never obsolete, new feature enhancements and upgrades can be added easily.

"S/T" models are powered by PS1 (phantom) or PS2 (pins 7 and 8) power over the ISDN line cord. Power is typically supplied by the NT1. "U" models can be locally powered, or remotely powered by a bulk supply using PS2 power over the ISDN line cord. Power supplies are available separately.

Both the 8610 and 8620 models are on the DSN Approved Products List. Products on this list have received Joint Interoperability Certification (JIC) and Information Assurance Accreditation (IAA) from the Defense Information System Network (DISN) Designated Approval Authorities (DAA) in accordance with the Department of Defense Instruction DoDI 8100.3.


Certified and Accredited

  • JIC Joint Interoperability Certified
  • IAA Information Assurance Accreditation
  • DISN Defense Information Systems Network Certified
  • DAA Designated Approval Authorities

Multifunction Keys

Available with 10 or 20 Multifunction Keys, expandable to 40 or 50.

Plug & Play

Auto Switch Detection, Auto SPID, Parameter Downloading, and Automatic Feature Key Remapping.

National and Custom ISDN

Works with all versions of National ISDN and Lucent 5ESS Custom ISDN.

LCD Display

2 rows, 24 characters wide.


Hands-free communicating, Voice Announcing of screened calls or station-level on-hook paging.

Speed Dialing Keys

36 name/number Speed Dial Directory.

Last Number Redial

Connect to last number detected.

Caller ID and Call Duration Display

Identify callers and call duration.

Call Log

Caller ID, called line ID, time, date, and duration, sorted by type.

Call Identification

Identifies additional incoming calls.

Dedicated Function Keys

Conference, Transfer, Drop, Hold, Speakerphone, Mute, Volume.

Soft Keys

Call menus, Setup menus, Line Key Feature Programming, Key Inspection, and more.

Direct Station Selection

With Busy Line Status indicators.

DTMF support

For non-ISDN applications.


User-selectable ringtone per line.

Message Indicator

Message Waiting LED Indication.

Adjustable Volume Control

Controls voice transmit/receive and ringing.

Date and Time Display

Integrated onscreen date and time display.

Hearing Aid Compatible

Meets FCC Part 68 Volume Control Requirements.

User Upgradeable Software

Software can be upgraded via portable hand-held downloader.


Local Inspect for network protocol logging and analysis.

Support for TAPI-compliant Windows Applications

Optional 8001TA, 8003TA, or 8005TA Terminal Adapter available.

Analog Port Option

Analog telephone port provided by optional 8002TA, 8003TA, or 8005TA Terminal Adapter.

Deployment Options

Desktop (high and low positions) or Wall Mounting.

Choice of Interface

"S/T" and "U" Interface versions available.

Setup Wizard

Windows-based User Setup Program for configuration and labeling.


Free call management add-in for Microsoft® Outlook.

Made in USA

Designed and manufactured in the U.S.


8030X Button Expansion Module

This option adds 30 multifunction keys to the ISDN Phone 8610 or 8620.

The additional multifunction keys can be set up as Call Appearance keys, speed dial keys, Direct Station Select keys, or Feature Activator keys. All multifunction keys have both red and green lamp indicators for easy status viewing. This module is ideal for answering positions and high-density key applications.

Only one 8030X per telephone is supported.

Terminal Adapters

Terminal adapter options enhance the functionality of ISDN Phones 8610 and 8620. Models are available with a serial (USB or RS-232) port to interface the telephone with a Windows PC, and/or an analog port for standard analog telephone devices. Each Terminal Adapter is housed in a module that replaces the expansion cover on the bottom of the telephone.

Local Direct Power Option -PWR1

The -PWR1 Desktop Power Supply option provides filtered operating power for “U” models via the phone’s barrel connector.

Local Direct Power Option -PWR3

The -PWR3 Wall-Mount Power Supply option provides filtered operating power for “U” models on pins 7 and 8 of the line cord (PS2 power arrangement). This power supply has sufficient capacity to power one NT1 and two ISDN telephones.

Privacy with Voice Announce Disabled –P, Microphone Removed –M

The -P and -M options are for secure areas that do not require TSG-6 certification. Voice Announce is a feature that is disabled by default, but can be enabled and configured by the installer. It allows incoming calls to be answered automatically by the speakerphone. The feature can be set up to answer all calls, calls to specific lines, calls from specific callers, or call types based on the ringing pattern.

-P has the Voice Announce capability completely disabled; the phone cannot be set up to auto-answer incoming calls. This prevents someone from calling the phone and listening in to conversations in the room. It still has a microphone for use with the speakerphone.

-M has the microphone physically removed. This disables hands-free talkback when using the speakerphone or Voice Announce.

PhoneLink for Outlook

PhoneLink® for Outlook is a free add-in for Microsoft® Outlook® that manages inbound calls to multiple call appearances on a Teo 8610/8620 ISDN telephone equipped with an 8001TA, 8003TA, 8004TA, or 8005TA Terminal Adapter. Ringing, active, and held calls are shown in a popup window. You can answer calls, transfer calls, or place calls on hold with a single click.

PhoneLink for Outlook integrates with Outlook's Contacts for incoming call identification. Call details are recorded in Outlook's Journal.

ISDN Telephone Setup Wizard

The ISDN Telephone Setup Wizard is a Windows program that will print labels, service ordering forms, and setup instructions for a single 6210/6220 phone or a multiple-phone installation. Labels can be printed on plain paper or on perforated label forms supplied with the telephone.


Headset options are available from other manufacturers.


Standards Compliance

  • FCC Part 15
  • FCC Part 68
  • Hearing Aid Compatible
  • ANSI T1.601-1992 and T1.605-1991
  • UL, cUL Listed

Network Switch Compatibility

  • Lucent 5ESS: National and Custom ISDN
  • Avaya Definity, Multivantage, and Communication Manager PBX: National and Custom ISDN
  • Nortel DMS-100: National ISDN
  • Nortel Meridian 1 Option Series PBX: National ISDN
  • Siemens EWSD: National ISDN
  • Lucent/AG Communication Systems GTD-5: National ISDN

Power Requirements

  • PS1 (phantom) or PS2 (pins 7 and 8)
  • 24 to 56.5 VDC @ 2 W max. per terminal (excluding wiring losses)


  • Dimensions: 3.5" H x 9.6" W x 8" D, including handset
  • Weight: 2.3 lbs.


  • Operating Temperature: 32° to 104° F (0° to 40° C)
  • Storage Temperature: 32° to 122° F (0° to 50° C)
  • Humidity: 5% to 95% non-condensing

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