Mitel OpenScape Desk Phone CPx10 cornetta

For OpenScape CP series desk phones, the Mitel 51313528 handset is the exact replacement part that restores clear, natural voice transmission without the need to replace the entire phone. Unlike generic handsets, this unit is built to the original acoustic and ergonomic specifications, ensuring a secure fit and consistent performance across CP100, CP200, CP400, and CP600 models.

Highlights

• Genuine Mitel replacement handset for OpenScape Desk Phone CPx10 series
• Plug-and-play installation with coiled cord and RJ9/RJ10 modular connector
• Hearing aid compatible (T-Coil) for accessible communication
• Durable ABS plastic construction with ergonomic shape for all-day comfort
• Electret condenser microphone and dynamic speaker for clear audio

In daily use

The coiled cord stretches up to 200 cm, giving you freedom to move while on a call, then retracts neatly to avoid clutter. The handset's balanced weight and contoured grip reduce fatigue during long conversations, and the black finish blends seamlessly with any desk phone. Whether you are replacing a worn-out handset or equipping a spare phone, this unit connects in seconds and requires no configuration.

Full specifications

• Compatibility: Mitel/Unify OpenScape Desk Phone CP100, CP200, CP400, CP600 series
• Color: Black
• Connector type: RJ9/RJ10 (4P4C) modular
• Cord type: Coiled handset cord, stretched length up to 200 cm
• Material: High-quality ABS plastic
• Microphone: Electret condenser
• Speaker: Dynamic
• Hearing aid compatible: Yes (T-Coil)
• Installation: Plug-and-play
• Certifications: CE, RoHS
• Operating temperature: 0°C to 40°C
• Storage temperature: -20°C to 60°C

Final note

Keep your OpenScape phone performing like new with this authentic Mitel handset—a small investment that extends the life of your communication tools.