Cisco
Cisco Desk Phone 9841 DP-9841-K9 4-Line Gigabit VoIP IP Phone SIP PoE
PO and Net 30 accepted for schools, government and healthcare.
Description
Description
Save up to 60% on the Cisco Desk Phone 9841 (DP-9841-K9) β a modern 4-line Gigabit VoIP IP phone built for hybrid work, hot desking, and enterprise-grade calling. Backed by Reef Telecom's industry-leading 10-year warranty, this Cisco Certified Refresh unit delivers like-new performance at a fraction of the cost.
Key Features & Specifications
- Display: 3.5" Backlit Grayscale LCD (384 x 160 resolution)
- Line Keys: 4 programmable line keys, supports up to 16 SIP lines
- Audio: Cisco Smart Audio with AI noise removal, full-duplex speakerphone, HD wideband codecs (Opus, G.722, G.711, G.729a/b, iLBC)
- Platform: PhoneOS β one device for CUCM, Webex Calling, BroadWorks, Asterisk, and 3rd-party SIP platforms
- Networking: 2-port Gigabit Ethernet switch (10/100/1000 Base-T), PoE powered
- Security: TPM 2.0, TLS 1.3, Secure Boot, SRTP encryption
- Connectivity: 1x USB-A port, 1x AUX port, hearing-aid compatible (HAC) handset
- Productivity: One Button to Join (OBTJ) meetings, hot desking & desk reservation, configurable Action Button
- Sustainability: 74% post-consumer recycled plastic, ENERGY STAR certified
Why Buy Refurbished from Reef Telecom?
Every Cisco Certified Refresh phone is rigorously tested, restored to factory specifications, and backed by our 10-year warranty β 10x longer than the manufacturer's standard coverage. Ideal for enterprise deployments, branch offices, call centers, and hybrid work environments where reliability and cost savings matter.
Specs & Details
Specs & Details
- Condition
- Certified Refurbished
- Warranty
- 10-Year Reef Telecom Warranty
- Manufacturer Part Number
- DP-9841-K9
- Reef SKU
- DP-9841-K9
- UPC
- 889728594950
- Brand
- Cisco
Shipping & Warranty
Shipping & Warranty
Free ground shipping on orders over $300 (contiguous US). Same-day dispatch on orders placed before 4 PM EST.
All products include our industry-leading 10 Year Warranty backed by Reef Telecom.

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Every deliveryβs carbon footprint is calculated based on weight, shipping method, and distance traveled. We neutralize these emissions by purchasing verified carbon removal credits from groundbreaking projects.
With your purchase, youβll join a community of proactive merchants and customers dedicated to a sustainable future. Together, we've removed emissions for over 85 million deliveries and removed over 59 thousand tonnes of carbon.
We work with a network of pioneering carbon removal companies that have been vetted by the commerce platform Shopify.
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We provide the highest quality refurbished equipment β extending hardware lifecycles and keeping e-waste out of the ocean.