Avaya 9621G User Manual

The Avaya 9621G is a high-performance IP deskphone featuring a large color display, advanced telephony features, support for multiple lines and calls, integrated Gigabit Ethernet switch, PoE support, and compatibility with Avaya Aura and IP Office platforms. Below are key sections for safety, features, installation, setup, operation, and troubleshooting.

1. Features at a Glance 2. Installation 3. First-Time Setup 4. Specifications 5. Controls and Settings 6. Connecting Devices 7. Advanced Call Features 8. Accessibility Features 9. Care & Cleaning 10. Regulatory Information 11. Troubleshooting

Features at a Glance

Key components: Large color LCD display, Speakerphone, Handset, Navigation cluster, Programmable feature keys, Volume controls, Headset jack, Ethernet ports.

FeatureDescription
DisplayHigh-resolution color LCD with adjustable contrast
SpeakerphoneFull-duplex for hands-free conversations
HandsetTraditional handset with noise-canceling microphone
Navigation Cluster4-way navigation with select button for menu control
Programmable KeysConfigurable for speed dial, line appearances, features
Volume ControlsSeparate controls for handset, speaker, ringer
Headset JackFor connecting wired headset (optional)
Ethernet PortsTwo 10/100/1000 Mbps ports (LAN, PC)
Power802.3af PoE or optional AC power adapter
MUTEMutes microphone during calls

Installation

Unpack and inspect contents. Place on stable desk surface.

  1. Connect to network: Use Ethernet cable from switch to phone's LAN port.
  2. Connect PC: Use second Ethernet cable from phone's PC port to computer.
  3. Connect handset: Plug coiled cord into handset jack.
  4. Power the phone: Use PoE from switch or connect AC power adapter.

WARNING! Use only approved power sources. Ensure cables are securely connected.

First-Time Setup

Phone will boot and attempt to obtain network configuration automatically.

  1. Check registration: Look for extension number on idle screen.
  2. Set language: Press Settings > User Preferences > Language.
  3. Adjust display: Settings > User Preferences > Display for contrast/brightness.
  4. Program keys: Press and hold programmable key to assign function.
  5. Set date/time: Usually automatic from server; verify in Settings.

CAUTION! Do not disconnect during boot process. Allow phone to complete initialization.

Specifications

Controls and Settings

Access menu via NAVIGATION cluster or dedicated buttons. Front Panel: MUTE, SPEAKER, HEADSET, NAVIGATION, VOLUME, programmable keys.

Softkeys: Context-sensitive functions shown on display above keys.

Call Handling: ANSWER, END CALL, HOLD, TRANSFER, CONFERENCE. Settings: User Preferences (language, display, ring tones), Call Features (forward, DND), Network (view IP, status). Programmable Keys: Assign as line, speed dial, feature (BLF, call park).

Connecting Devices

Network: LAN port to switch. PC: PC port to computer. Headset: 2.5mm jack.

  1. Ensure phone is powered off before connecting cables.
  2. Match Ethernet cables to correct ports (LAN vs PC).
  3. For headset, plug into dedicated jack on side of phone.
  4. Power on phone and verify network connectivity.

Tip: Use quality CAT5e or CAT6 cables for Gigabit performance.

Advanced Call Features

Supports enterprise telephony features.

  1. Make call: Lift handset or press SPEAKER, dial number.
  2. Answer call: Lift handset, press ANSWER softkey, or press ringing line key.
  3. Hold: Press HOLD button during call.
  4. Transfer: Press TRANSFER, dial target, press TRANSFER again.
  5. Conference: Press CONFERENCE, dial participant, press CONFERENCE to join.
  6. Call forward: Settings > Call Features > Forward Always/No Answer/Busy.
  7. Voicemail: Press MESSAGES key or dial voicemail access number.
  8. Speed dial: Program key or use directory to store frequently dialed numbers.

WARNING! Do not use liquid cleaners on phone. Keep away from excessive moisture.

Accessibility Features

Visual alerts: Flashing LED for incoming calls. Audio adjustments: Separate volume controls for ringer, handset, speaker. Hearing aid compatible: Handset meets TIA-1083 standard. Large font: Option for larger display text in settings.

Care & Cleaning

Unplug power before cleaning. Use slightly damp cloth for exterior; dry immediately. Do not use abrasive cleaners or solvents.

CAUTION! Never spray liquids directly on phone. Avoid getting moisture in openings.

Regulatory Information

FCC Part 15: Class A digital device; complies with limits for business use. CE marked for European compliance. Industry Canada ICES-003. Ringer equivalence: 0.4B. For technical support, visit www.avaya.com/support or contact your system administrator.

Troubleshooting

SymptomPossible CauseCorrective Action
No display/powerPower/PoE issueCheck Ethernet cable; verify PoE switch enabled; try AC adapter.
No dial toneNetwork/registrationCheck network connection; verify phone registered to server.
Poor audio qualityNetwork/deviceCheck network QoS; verify handset cord fully inserted.
Cannot transfer callsConfigurationVerify feature enabled by system administrator.
Keys not respondingSoftwareReset phone via settings or power cycle.

Reset: Settings > Advanced > Reset Settings (may require admin password).

Service: Contact system administrator or Avaya support at www.avaya.com.

Avaya 9621G User Manual © - All Rights Reserved 2025