The Cisco 7841 is a Gigabit VoIP phone that supports four SIP registrations and comes with multiplatform phone firmware installed, enabling use with third-party SIP platforms. It is certified to support Broadsoft and Centile, and has been tested to be interoperable with Asterisk. The phone features wideband audio from the hearing aid compatible handset and full-duplex speakerphone, with optional headset support via dedicated RJ9 port.
Specification
4-line SIP VoIP phone with multiplatform firmware
3.5" (396x162) white-backlit grayscale display
Dual Gigabit Ethernet ports (10/100/1000)
Power over Ethernet (PoE) Class 1
Wideband audio with full-duplex speakerphone
Dedicated RJ9 headset port with electronic hookswitch support
Four context-sensitive soft keys
Programmable line keys
Hearing aid compatible handset
Wall-mountable design
Opus audio codec support
