MiVoice 5603 Wireless IP Phone

The Mitel 5603 Wireless IP Phone is tailored to office requirements. Designed for flexibility and low cost, the 5603 Wireless Phone provides an advanced, simple-to-use user interface. It provides value for the user who has less complex demands, but who still requires a quality handset for intense daily use.

In addition to enhanced Mitel MiVoice Business feature interworking over SIP, this IP-DECT handset can be twinned to the user’s desktop in conjunction with their MCD Personal Ring Group capability, allowing a single number to reach them, regardless of their location. As well, the 5603 Wireless Phone comes with a default list of MCD features pre-programmed.


Simplified Device Management

The Mitel IP-DECT System (Global) software release 4.0 introduced support for simplified device management, compatible with the 5603 Wireless Phone. Programming can be achieved over-the-air via the Mitel Wireless Services Messaging (WSM) Gateway, or via a PC in conjunction with either the 5603 / 5604 Wireless Phone Programmer or 5603 / 5604 Wireless Phone Rack Charger. This includes both programming and software upgrading.


Designed for general office environments, the features include:

  • Enhanced, customizable Graphical User Interface (GUI)
  • High-quality voice
  • Local phonebook (500 entries)
  • Central phonebook
  • Call list with 25 last calls
  • Speakerphone mode
  • Vibrator alert
  • Six languages and one customizable
  • Battery Life (talk / standby): 16 hrs / 180 hrs
  • Manual and automatic keypad lock
  • GAP- / CAP-compliant DECT handset

System features supported (include):

  • Voice mail access with message waiting indication
  • Hold / retrieve with music on hold
  • Call forward
  • Transfer
  • Three party conference
  • Call waiting and retrieve
  • Do not disturb
  • Call pickup
  • Call park (slot number not specifiable)
  • Call reject
  • Call back
  • Distinctive ringing
  • Out of use

Product Downloads:

MiVoice 5603 Wireless Phone Datasheet