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Phone Guides

Unify OpenScape CP400

Unify OpenScape CP400

Unify OpenScape CP400 desk phone with a 3.7-inch monochrome display, dual Gigabit Ethernet and PoE.

Setup and support

Mitel offers SIP and HFA variants in this family. Check the purchased variant and target OpenScape platform release.

Official resources

OpenScape CPx00 series

Compatibility

Match the exact SIP or platform variant and firmware before provisioning. Unlisted paths remain Unknown.

Specifications

Calling

Programmable keys
16

Display

Display size
3.7 in
Display resolution
240 x 120
Colour display
No

Connectivity

Ethernet
Gigabit
Power over Ethernet
Yes

Audio

Full-duplex speakerphone
Yes

Compatible phone systems

The indicator shows whether a compatible configuration path is documented, or whether the result still needs verification. A not-listed result does not mean technically incompatible. It does not replace checking the provider firmware branch, tenant, network and feature requirements.

3CX V20Not reviewed

Listed firmware applies to 3CX V20. Cloud or remote phones need a router phone or SBC. Recheck the current provider release before deployment.

Zoom PhoneNot reviewed

Yealink phones require Zoom-specific firmware. A certification entry does not confirm every feature or regional deployment.

Microsoft Teams SIP GatewayNot reviewed

This is SIP Gateway compatibility, not native Teams-phone certification. Use the gateway provisioning path and approved firmware; confirm tenant licensing, policies and network requirements.