Avaya 1603-I IP Phone | Global | Refurbished – 700508259

Product Overview

The Avaya 1603-I IP Phone delivers reliable communications for walk-up users and basic everyday users who need a simple, familiar interface. Its 2-line by 16-character display with white backlight provides clear caller information, while three programmable feature buttons with dual-color red/green LEDs enable efficient call handling and line status monitoring. Fixed feature keys for Conference, Transfer, Drop, Hold, Mute, Redial, and Speaker provide one-touch access to essential functions.

Designed for cost-conscious deployments, the 1603-I includes a high-quality two-way speakerphone for hands-free communication. The single 10/100 Ethernet interface keeps installation simple, while the convertible desk stand enables wall mounting without additional hardware. Power options include optional PoE via the 1603 PoE Splitter (802.3af) or a 5V power supply for flexible deployment.

The Global version features icon-based button labels for international deployments, supporting 14 languages including English, French, Spanish, German, Italian, Dutch, Portuguese, Russian, Japanese, Traditional Chinese, Simplified Chinese, Korean, Hebrew, and Arabic. Compatible with Avaya IP Office R4.2+ and Communication Manager R3.0+, the 1603-I is ideal for common areas, lobbies, stockrooms, break rooms, and drop-in desks where basic voice communications are needed.

Macondo Refurbished Product - Proven Reliability and Quality from the Industry Leader

Every refurbished product from Macondo Networks is fully tested before and after refurbishing to ensure flawless operation. We hold our cosmetic standards high—no yellowed buttons, scratched displays, or visible wear. Units ship factory reset with the latest firmware installed, ready for immediate deployment. Phones include a new handset, handset cord, and network/line cable. Our 12-month warranty reflects the confidence we have in every refurbished unit we sell. Why pay premium prices for new when you can get the same quality and warranty coverage at a fraction of the cost?

Who Should Use This Product?

General Office Workers

Employees who need reliable voice communication with essential features for daily business calls, voicemail access, and basic call management.

Administrative Staff

Receptionists and administrative professionals who handle moderate call volumes and require multi-line capability with easy call transfer functions.

Small Business Teams

Cost-conscious organizations seeking enterprise-quality IP phones that integrate with Avaya communication systems without premium pricing.

Why Choose This Product

The Avaya 1603-I IP Phone empowers your workforce with reliable, high-quality voice communications that enhance productivity and collaboration. By consolidating voice and data over a single network connection, organizations reduce infrastructure costs while maintaining enterprise-grade call quality. The intuitive interface minimizes training time, allowing employees to quickly master essential features and focus on their core responsibilities. With PoE support, deployment is simplified by eliminating the need for separate power adapters at each desk, reducing cable clutter and installation complexity.

Will This Work for Me?

Works With

  • Avaya Aura Communication Manager 5.2 or later
  • Avaya IP Office 8.0 or later
  • Avaya Aura Session Manager

Requirements

  • Cat5e or higher Ethernet cabling
  • PoE switch (IEEE 802.3af) or optional AC power adapter
  • DHCP server for automatic IP configuration

Software

  • SIP firmware for SIP deployments

Note

Power adapter sold separately if PoE is not available

What's in the Box

  • Avaya 1603-I IP Phone
  • Handset
  • Handset cord
  • Ethernet cable
  • Desk stand
  • Quick reference guide

Technical Specifications

Primary Attributes

Display Resolution: 128x25
Display Size: 2.6"
Ethernet Ports: 1
Ethernet Speed: 10/100 Mbps
Hard Line Keys: 3
Headset Port: None
Phone Connectivity: IP / H323, IP / SIP
PoE Support: 802.3af (PoE)
Power Options: PoE or AC Adapter
Programmable Keys: 3
SIP Lines: 3
Video Capable: No
WiFi: None
WiFi Standard: N/A

1600 Series Models (8)

View Avaya 16CC Call Center IP Phone | Refurbished – 700439755
Avaya 16CC Call Center IP Phone | Refurbished – 700439755
Refurbished
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16CC

SKU: 700439755-R
Condition: Refurbished
Stock: 1
$350.00
$630.00
Save $280.00
(44% off)
View Avaya 1616-I IP Phone | Text | Refurbished – 700458540
Avaya 1616-I IP Phone | Text | Refurbished – 700458540
Refurbished
Avaya logo

1616-I

SKU: 700458540-R
Condition: Refurbished
Stock: 1
$95.00
$171.00
Save $76.00
(44% off)
View Avaya 1616-I IP Phone | Global | Refurbished – 700504843
Avaya 1616-I IP Phone | Global | Refurbished – 700504843
Refurbished
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1616-I

SKU: 700504843-R
Condition: Refurbished
Stock: 1
$85.00
$171.00
Save $86.00
(50% off)
View Avaya 1603SW-I IP Phone | Text | Refurbished – 700458524
Avaya 1603SW-I IP Phone | Text | Refurbished – 700458524
Refurbished
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1603SW-I

SKU: 700458524-R
Condition: Refurbished
Stock: 1
$67.00
$120.60
Save $53.60
(44% off)
View Avaya 1608-I IP Phone | Global | Refurbished – 700508260
Avaya 1608-I IP Phone | Global | Refurbished – 700508260
Refurbished
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1608-I

SKU: 700508260-R
Condition: Refurbished
Stock: 1
$69.00
$124.20
Save $55.20
(44% off)
View Avaya 1603SW-I IP Phone | Global | Refurbished – 700508258
Avaya 1603SW-I IP Phone | Global | Refurbished – 700508258
Refurbished
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1603SW-I

SKU: 700508258-R
Condition: Refurbished
Stock: 1
$67.00
$120.60
Save $53.60
(44% off)
View Avaya 1603-I IP Phone | Text | Refurbished – 700476849
Avaya 1603-I IP Phone | Text | Refurbished – 700476849
Refurbished
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1603-I

SKU: 700476849-R
Condition: Refurbished
Stock: 1
$65.00
$117.00
Save $52.00
(44% off)
View Avaya 1608-I IP Phone | Text | Refurbished – 700458532
Avaya 1608-I IP Phone | Text | Refurbished – 700458532
Refurbished
Avaya logo

1608-I

SKU: 700458532-R
Condition: Refurbished
Stock: 1
$65.00
$120.60
Save $55.60
(46% off)