Cisco CP-7841-K9 | IP Phone 7800 4-Line VoIP, 3.5" Display, Gigabit

Q: What Cisco Unified Communications Manager license does the CP-7841-K9 require?
A: The Cisco IP Phone 7841 requires an Enhanced User Connect License (UCL) for connection to Cisco Unified Communications Manager, unlike the 7821 which uses Basic UCL. This licensing tier reflects the phone's advanced feature set and Gigabit Ethernet capability.

Q: Can the CP-7841-K9 work with third-party SIP platforms?
A: Yes, the CP-7841-K9 supports third-party call control and SIP-based platforms. For deployments requiring multiplatform firmware pre-installed, Cisco offers the CP-7841-3PCC-K9 variant, which is certified for Broadsoft and Centile and tested with Asterisk.

Q: How many simultaneous calls or line appearances can the 7841 support?
A: The 7841 supports four line appearances or feature assignments via its four programmable line keys. This makes it suitable for reception desks, administrative assistants, or team positions requiring multiple active lines without moving to the larger 16-line CP-7861-K9.

Q: Does the CP-7841-K9 support Gigabit Ethernet pass-through for desktop PCs?
A: Yes, the 7841 includes dual 10/100/1000BASE-T Gigabit Ethernet ports—one for network connectivity and one for PC pass-through. This is a key differentiator from the CP-7821-K9, which only supports 10/100BASE-T Fast Ethernet.

Q: What headsets are compatible with the Cisco 7841?
A: The CP-7841-K9 features a standard RJ-9 headset port and supports Electronic Hookswitch (EHS) control for third-party headsets. It is compatible with a wide range of wired headsets; consult Cisco's Headset Compatibility Guide for certified models and feature support.