CX300 R2 support

A USB phone optimized for use with soft clients

Specifications

Size (L x W x H)
- Handset: 7.5 x 2.0 x 0.75 in (19.05 x 5.08 x 1.91 cm)
- Cradle: 3.5 x 5.5 x 5.0 in (8.89 x 13.97 x 12.7 cm)
Weight
- Unit: 2.43 lbs (1.10 kgs)
- Handset: 0.45 lbs (0.21 kgs)
- Shipping weight: 2.43 lbs (1.10 kgs)
Power
- Supply voltage 5V provided by USB connection
- Power consumption 500 mA
Device to PC interface
- USB 2.0
- Captive 6.56 ft (2.0 m) USB cable
Device controls and keypad
- 4 x 3 dialpad
- Redial key
- Flash key
- Delete key
- Mute/unmute key
- Speaker on/off key
- Handset/headset key
- Volume up/down key
LED indicators
- Off-hook indicator
- Voice messaging indicator
- Speakerphone indicator
- Headset indicator
- Call forwarding indicator
Audio
- TIA-920
- Frequency response: 200–7 kHz >58 dB [200, 7000] Hz*
- Dynamic range: >80 dB (@ 1 kHz)
- Total Harmonic Distortion + Noise: <3% (@ 200–7 kHZ)
- * Is dependent on audio signal processing on Skype for Business/Lync client
Auxiliary audio output
- RJ-22 headset jack with built-in amplifier
Minimum system requirements
- Windows® 7 , Windows® 8 or Windows® 10
- PC with Skype for Business, Microsoft® Lync 2013 or Microsoft Lync 2010 installed
- One available USB 2.0 compliant connection
Environmental requirements
- Temperature: 0–40°C (32–104°F)
- Relative humidity: 95% max (non-condensing)
- Altitude: -1,000–13,000 ft (-304.8–3962.4 m)
- Light exposure: Fluorescent overhead lighting and window filtered daylight (typical offices)
Regulatory compliance - approvals gained
- Electrical safety
  - UL60950-1 (USA/Canada)
  - IEC/EN60950-1 (EU)
  - GOST
  - MIC
  - CQC
- EMC—general
  - CISPR22
- EMC—USA (Class B)
  - FCC Part 15
- EMC—Canada (Class B)
  - ICES00.3: 1998
- EMC—EU (Class B)
  - EN 55022
  - EN 55024
- EMC—ROW (Class B)
  - C-Tick (Australia)
  - VCCI (Japan)
  - GOST (Russia)
  - MIC (Korea)
  - CQC (China)
Warranty
- 12 months
CX300 R2 USB desktop phone ships with:
- CX300 R2 USB desktop phone base
- Handset
- 6 ft handset curly cord
- Captive USB cable
- Quickstart Guide
- Product registration card
- Warranty card