Extend a CP860 conference-phone installation with a dedicated external microphone rather than replacing the conference phone. The CPE80 adds an audio-capture point to the CP860 system, helping cover seating positions that sit beyond the base unit’s immediate microphone area. Its role is focused: it is an accessory microphone for a compatible conference-phone installation, not a standalone conference phone or a general-purpose desktop USB microphone. Use the YEA-CPE80 where the CP860 base phone remains central to the room but participants are distributed farther along a table or around a larger meeting space. This arrangement keeps call control, dialing, and speakerphone functions at the CP860 while placing added microphone coverage closer to remote attendees. It suits conference rooms whose central table extends beyond the base phone’s most convenient pickup position. Within the CP860 accessory range, this model is distinguished by its microphone-expansion function. Select it when the requirement is to add a dedicated capture accessory to an existing CP860 conference-phone system, rather than add display, network, or call-control hardware. Confirm that the target installation uses the CP860 platform before selecting an expansion microphone.