Cisco 7821 IP Phone is a professional device offering high-definition audio, dual-line support and robust network connectivity, making it ideal for offices, call centers and corporate environments.
Key Specifications
-
Display: 3.5-inch grayscale LCD (396 x 162 pixels), white backlit
-
Line Keys: 2 programmable line keys with tri-color LEDs
-
Ethernet Ports: Dual 10/100BASE-T ports
-
Power over Ethernet (PoE): IEEE 802.3af Class 1
-
Audio: Wideband audio support (G.722), full-duplex speakerphone
-
Headset Support: RJ-9 headset port, Electronic Hook Switch (EHS) support
-
Mounting: Desk mountable with optional wall mount kit
-
Protocols Supported: SIP, SRTP
-
Codec Support: G.711μ/a, G.722, G.729ab, iLBC
-
Power Options: Powered via PoE or optional AC adapter
-
Dimensions: Approximately 8.5 x 8 x 1.5 inches
-
Weight: Approximately 1.7 kg











