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Mobile USB Headset Adapter for IP Softphones

The Nortel Mobile USB Headset Adapter extends high-quality digital audio and business telephony features from Nortel Communication Clients including the IP Softphone 2050, Multimedia Communication Server 5100 and Multimedia Communication Server 5200 Clients, and the m6350 for IP Centrex applications. USB 1.1 (and later) connections are supported along with a 2.5mm headset jack, offering the choice of a single 3 rd party headset for use in both public and private network calls.

Key Features:
  • Function keys on top of adapter for call initiate/call answer, call release, mute and volume up/down provide immediate and convenient access to the most popular telephony control commands
  • Minimize/maximize key enhances productivity, reduces client intrusion by placing client presence (foreground, background) on the PC directly in the control of the user via the adapter
  • 2.5mm Headset jack enables end users to purchase a single 3rd party headset and support both public (compatible with Motorola cellular) and private network telephony communications with Nortel software-based Communication Clients
  • Adapter’s small form factor (62mm Long, 32 mm Wide, 16mm High) delivers ultimate portability for mobile workers on-the-go or even the casual telecommuter
  • Reduces IT administration and overhead associated with debugging operating systems, soundcards, etc
Features & Benefits


  • Six, color-coded, preprinted icon-based function keys for minimize/maximize, call answer, call release, mute, volume up, volume down
  • 2.5mm headset jack supports use of 3rd party headsets compatible with Motorola cellular telephones
  • Portable – small form factor with dimensions of  62mm Long, 32 mm Wide, 16mm High
  • Visual alerting via Red and Blue translucent LED’s of incoming call, voicemail and adapter activation status
  • User configurable audio parameters enable client alerts and media to be directed to external PC speakers or to USB Headset
  • Supports Nortel software-based Communication Clients including IP Softphone 2050, Multimedia Communication Server 5100 and 5200 PC and Web Clients and m6350 IP Centrex Client
  • Comes standard with small carrying case to pack adapter when on-the-move


  • Optimized solution for the worker constantly on-the-go or the casual telecommuter
  • Easy-to-recognize and intuitive function keys deliver immediate access to common business telephony application controls
  • Maximizes convenience and flexibility with support of 3rd party headsets, for deployment with Motorola cellular telephones, delivering both public and private network access to mobile workers
  • USB Headset Adapter and bundled headset reduce IT administration and overhead costs - avoiding operating system, soundcard and PC application debugging issues that can be incurred by use of 3rd party solutions
  • Supports Nortel IP Telephony and Converged Client solutions, delivering investment protection to customers as business needs evolve
  • Provides superior digital audio quality with controls for echo suppression, latency and volume gain/loss levels
  • Integrated Belt-clip stabilizes both Adapter and Headset while on-the-go
  • Expands portfolio of USB offerings delivering increased choice in adapter solutions for customers 
Technical Specifications

Operating System

  • Windows 98SE
  • Windows 2000
  • Windows XP Service Pack 2 (IP Softphone 2050, m6350)

Compatible Software                  

  • IP Softphone 2050 RLS 1.4 (Build 346) or later
  • Multimedia Communication Server 5100/5200 RLS 3.0.231 or later

PC Connectivity                 

  • USB 1.1 or higher


  • USB powered. Maximum 100mA at 5V


  • Firmware upgradeable Flash over USB


  • CISPR 22 ClassB                               
  • CSA                           
  • CISPR 24                               
  • CE                              
  • FCC

Operating Temperature      

  • 0degC to 40degC

Headset Specification


2.5mm jack (tip is mic, ring is rcvr, common sleeve)

Microphone Type:                    

Noise canceling electret

Microphone Sensitivity:             

Typical -34 dbV/ubar at 1 kHz

Microphone DC resistance:      

5KOhm to 20KOhm at 2.4V DC bias

Microphone AC impedance:      

<5KOhm at 1 kHz

Microphone Freq Response:     

+/- 3dB 200Hz to 4 kHz

Receiver Type:                           

Dynamic Speaker

Receiver Impedance:                 

32 Ohm to 150 Ohm

Receiver Sensitivity:             

Typical 114 dB SPL 1mW at 1KHz

Return Loss:                                

>32 dB (acoustic, electrical, mechanical)

UL, FCC, CE     


Do you offer longer USB cables for the headset?

The Mobile USB Headset Adapter is designed with portability in mind as targeted for the worker-on-the-go. End users who desire a longer cord length could leverage use of standard USB hubs for support or consider, if appropriate, the Enhanced USB Audio Adapter designed for desktop use that comes standard with a longer cord from the PC’s USB port to the Adapter’s USB connector.

Does the External Alerter which is used in call centre environments work with the Mobile  USB Headset Adapter as well?

Users of the Mobile USB Headset Adapter may use PC speakers for audio-based external alerting. Users requiring visual external alerting may wish to consider the Nortel Enhanced USB Adapter that supports a 3rd party developer visual alerter solution.

If you have any queries or would like more information about any of the solutions outlined, please contact us or request a call back. Alternately, you can call us on 905 695 2241 or 877 888 3588 for more immediate help and advice.

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