Avaya 4621SW IP Phone Manual

The Avaya 4621SW is a full-featured IP telephone designed for business environments, supporting SIP protocol, high-quality audio, programmable feature keys, LCD display, Ethernet connectivity, headset compatibility, and integration with Avaya communication servers. Below are key sections covering safety, features, installation, configuration, 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 Features 8. Accessibility Features 9. Care & Cleaning 10. Regulatory Information 11. Troubleshooting

Features at a Glance

Key components: LCD display with backlight, programmable feature keys, Ethernet ports, handset with noise-canceling microphone, headset jack, volume controls.

Feature	Description
LCD Display	2-line, 24-character display with backlight
Programmable Keys	6 programmable feature keys for speed dial, call functions
Ethernet Ports	10/100 Mbps switch with LAN and PC ports
Handset	Full-duplex speakerphone with noise cancellation
Headset Jack	2.5mm jack for headset connectivity
Volume Controls	Separate controls for handset, speaker, ringer
MUTE	Mutes microphone during calls
HOLD	Places active call on hold
CONFERENCE	Sets up conference calls
TRANSFER	Transfers calls to another extension

Installation

Unpack and inspect contents. Place on stable surface near network connection.

Connect to network: Use Ethernet cable to connect LAN port to network switch.
Connect PC: Use second Ethernet cable from PC port to computer.
Connect handset: Plug coiled handset cord into handset jack.
Connect power: Use provided power adapter or PoE (Power over Ethernet).

WARNING! Use only approved power adapter. Ensure proper ventilation around phone.

First-Time Setup

Power on phone; follow initialization prompts.

Network configuration: Phone obtains IP address via DHCP by default.
Server registration: Enter SIP server address provided by administrator.
Extension setup: Configure extension number and authentication credentials.
Feature programming: Program feature keys for speed dial, call pickup, etc.

CAUTION! Handle handset cord carefully to avoid damage to connectors.

Specifications

Display: 2-line, 24-character LCD with backlight.
Network: 10/100 Mbps Ethernet, SIP protocol support.
Audio: Wideband audio support, noise-canceling microphone.
Ports: Two 10/100 Ethernet ports, headset jack, power connector.
Power: 48V DC power adapter or IEEE 802.3af PoE.
Supported protocols: SIP (Session Initiation Protocol), RTP, TCP/IP.
Operating Temperature: 32°F to 104°F (0°C to 40°C).
Dimensions: 8.5" x 7.5" x 3.5" (216mm x 191mm x 89mm).

Controls and Settings

Access menu via MENU button. Navigation: Use arrow keys and SELECT button.

Key Functions: HOLD, TRANSFER, CONFERENCE, MUTE, VOLUME UP/DOWN, MENU, NAVIGATION arrows, SELECT, EXIT.

Basic Settings: Time/date, display contrast, ringer volume/tones, ring patterns. Network Settings: IP configuration (DHCP/static), SIP server, proxy settings. Feature Programming: Programmable keys for speed dial, call forwarding, do not disturb. Audio Settings: Handset volume, speaker volume, headset gain, audio codec selection.

Connecting Devices

Network: Ethernet cable to LAN port. PC: Ethernet cable from PC port to computer. Headset: 2.5mm plug to headset jack.

Ensure phone is powered off before connecting cables.
Use Cat5e or better Ethernet cables for network connections.
For PoE, verify switch supports IEEE 802.3af.
Select headset compatible with 2.5mm connection.

Tip: Label cables for easy identification during maintenance.

Advanced Features

Supports call forwarding, conference calling, speed dial, call history.

Make call: Lift handset or press SPEAKER, dial number.
Answer call: Lift handset or press SPEAKER/ANSWER softkey.
Hold call: Press HOLD button; resume with RESUME softkey.
Transfer call: Press TRANSFER, dial target number, press TRANSFER again.
Conference call: Press CONFERENCE, dial first party, press CONFERENCE again for additional parties.
Speed dial: Program keys for one-touch dialing.
Call history: Press MENU, select Call Log to view missed/received/dialed calls.
Do not disturb: Enable via menu to silence ringer for incoming calls.

WARNING! Do not expose phone to liquids or extreme temperatures.

Accessibility Features

Adjustable ringer volume and patterns. Visual alerts via message waiting indicator. Large, backlit buttons for low-light conditions. Hearing aid compatible handset.

Care & Cleaning

Unplug power before cleaning. Use slightly damp cloth with mild detergent. Do not use abrasive cleaners or solvents.

CAUTION! Never spray liquids directly on phone. Keep away from heat sources.

Regulatory Information

FCC Part 15: Class A digital device; complies with limits for business environments. UL/CSA listed. CE marked for European compliance. Copyright © Avaya Inc. All rights reserved. For technical support, visit www.avaya.com/support or contact 1-866-462-8292.

Troubleshooting

Symptom	Possible Cause	Corrective Action
No display/power	Power connection	Check power adapter/PoE connection; verify outlet is working.
No network connectivity	Cable/configuration	Check Ethernet cables; verify network switch is operational; check IP settings.
Cannot make/receive calls	SIP registration	Verify SIP server settings; check username/password; confirm network connectivity.
Poor audio quality	Network/connections	Check network for packet loss; verify handset/headset connections; adjust volume.
Programmed features not working	Configuration	Re-program feature keys; reset to factory defaults if needed.

Reset: Press *#*# during boot for factory reset (clears all settings).

Service: 1-866-462-8292; www.avaya.com/support