The Cisco Desk Phone 9841 wired IP phone features a 3.5-inch backlit grayscale LCD display with a resolution of 384 × 160. It has four programmable line keys and supports caller ID.

For networking, it has a built-in two-port Gigabit Ethernet switch. It supports HD audio and a variety of audio codecs. Security is based on Trusted Platform Module (TPM) 2.0 and includes TLS 1.3.

• Type: Wired IP phone
• Color: Carbon black
• Caller ID: Supported
• Display: 3.5-inch backlit grayscale LCD with a resolution of 384 × 160
• Line keys: 4 programmable
• Audio: HD
• Connectivity: Gigabit Ethernet
• Ethernet ports: 2
• Audio codecs: Supports a variety of codecs
• Security: Trusted Platform Module (TPM) 2.0 and TLS 1.3
• Recycled plastic: 74% post-consumer plastic