The Cisco CP-7821-K9 is an entry-level IP phone designed for basic business communications, offering essential features with reliable performance. Featuring a compact design with a clear monochrome display, it provides straightforward call management and user-friendly operation. This model supports both Power over Ethernet (PoE 802.3af) and an optional external power adapter for flexible deployment, along with a Fast Ethernet port (10/100 Mbps) for network connectivity.
Equipped with high-quality audio technology, the phone delivers clear voice transmission using G.711 and G.729 codecs, ensuring reliable conversations in any office environment. Built-in security features include TLS and SRTP encryption to protect communication privacy. Compatible with both SIP and SCCP protocols, it seamlessly integrates with Cisco Unified Communications Manager and most third-party IP-PBX systems.
The practical design includes a responsive keypad, dedicated hold and transfer buttons, and support for wired headsets via the RJ9 port. With a compact form factor (8.5×9.5×7.5cm, 0.9kg) and energy-efficient operation, it is ideal for general office use, common areas, or as a secondary phone. Shipped in protective color carton packaging, the CP-7821-K9 offers an economical solution for organizations seeking dependable, no-frills VoIP communication with enterprise-grade security. Additional features include customizable ring tones, multiple language support, and compliance with industry standards including CE, FCC, and RoHS certifications.
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