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1603 and 1603SW IP Telephones and 1403 Digital Telephones and 1403 Digital Telephones  

This telephone is best suited for the Walkup and Basic Everyday user.



Works on:

IP Office

Communication Manager




1603 SW




clip0043 (R5 and later)



clip0043 (R5 and later)






On the 1600 line, only the 1603-I/603SW-I versions with improved display are available.

The Avaya 1403/1603 supports 3 line appearances. Each of the buttons includes dual LEDs (red, green) providing explicit status for the user. For a familiar look and feel, the 1403/1603 includes several fixed feature keys for common telephone tasks including conference, transfer, drop, hold, and mute. In addition, the 1403/1603 includes a 2-way speakerphone. The display on the 1403/1603 measures two lines by 16 characters and is backlit for easier viewing in all lighting conditions.

The 1603 SW telephone has the same features/functionality as the 1603 phone, it adds on top of that however a secondary Ethernet port and is therefore targeted at the basic Everyday user.

The newly introduced 1603-I/1603SW-I are functionally equal to the 1603/1603SW but feature a higher quality graphical display with white backlight, identical to the display of the digital 1403 telephone.


Common Features:

o Backlit display – 2 rows by 16 characters. Green backlight for 1603/1603-SW, white backlight for 1603-I, 1603SW-I, 1403.
o Reversible wedge stand for desktop and wall-mount use.
Fixed Buttons: 10.
o Volume up/down (separate volume levels for the handset, speaker, and ringer), Mute button, Speaker button.
o Avaya Menu button (options and settings access).
o Hold button, Conference button, Transfer button, Drop button, Redial button.
Programmable/Contextual buttons: 3.
o 3 line appearance key buttons – with dual LEDs (red, green) and paper labels (Printing tool available).
Key Labels: Icons and text used on fixed feature keys.
Speakerphone: Two-way handsfree speaker and microphone.
Hearing Aid Compatible: Yes - ergonomic hearing aid compatible handset also supporting TTY acoustic coupler.
Message Waiting Indicator: Yes - also useable as a ringing call alert indicator.
Personalized Ring Patterns: Yes - 8.
Headset Socket: No.
Upgradeable Firmware: Yes.
Expansion: None.
Color: Black.
Mounting: Desk or wall mountable.


Requirements for 1403:

Connect to: Digital Station (DS) port.
Power Supply: From phone system.


Requirements for IP interface: (1603, 1603SW, 1603-I, 1603SW-I)

Power Supply: Optional IEEE 802.3af Power over Ethernet (PoE) adapter (class 2) or optional wall plug local power supply.
Codecs/audio: G.711, G.729a/b, Dynamic Jitter buffer, Echo Cancellation, Comfort Noise, Automatic Gain Control.
QoS Options: UDP Port Selection, DiffServ and 802.1p/q (VLAN).
SNMP Support: Yes.
IP Address Assignment: Static or dynamic IP address assignment.
Ethernet Ports: 1603 - Single Ethernet (10/100) line interface. Support of optional Gigabit Ethernet Adapter.
Ethernet Ports: 1603 SW Ethernet (10/100) line interface with a secondary 10/100 port for co-located laptop or PC with VLAN separation. Support of optional Gigabit Ethernet Adapter.
Well suited for everyday use, where typically smaller sized data files transferred (web, email file attachments) or less demanding data-transfer application/usage (thus less sensitive to data transfer completion times).
For highly demanding data traffic processing with large amounts of small packets we recommend the 1616 phone for full speed data throughput.


Language Support:

1403/1603: Supports the following languages: English, French, Spanish, German, Italian, Dutch, Portuguese and Russian (English and four of the other languages at once in the phone).