The Cisco® Unified SIP Phone 3905 is a cost-effective, entry-level IP phone that addresses the need for basic voice communications with common Cisco Unified Communications features in an attractive design that is also budget-friendly. The phone can fill the communication needs of cubicle, retail, classroom, manufacturing floor and hallway, as well as various wall-mounted deployments. The single-line Cisco Unified SIP Phone 3905 supports two calls per line. Fixed keys for redial, transfer, and hold/resume, along with a full-duplex speakerphone and two-line display, which comes standard, deliver a more productive, easier-to-use, and flexible endpoint experience. With its dual-port 10/100 Ethernet switch for network and PC connections, the Cisco Unified SIP Phone 3905 offers IT organizations a cost-effective solution to reduce cabling infrastructure and administration costs at the desktop. The phone is also eco-friendly, taking advantage of reground and recyclable plastics to deliver a more earth-responsible solution.

Display
Touchscreen	N
Display resolution	128 x 32 pixels
Display number of colours	Monochrome
Display number of lines	2 lines
Audio
Speakerphone	Y
Microphone mute	Y
Voice codecs	G.711, G.729
Ports & interfaces
Ethernet LAN (RJ-45) ports	1
DC-in jack	Y
Internet connection required	Y
Interface	Ethernet
Weight & dimensions
Width	150 mm
Depth	205 mm
Height	53.5 mm
Weight	594.3 g
Operational conditions
Operating temperature (T-T)	0 - 40 °C
Operating relative humidity (H-H)	10 - 95%
Storage temperature (T-T)	-10 - 60 °C
Network
Ethernet LAN	Y
Wi-Fi	N
Bluetooth	N
Ethernet LAN interface type	Fast Ethernet
Ethernet LAN data rates	10,100 Mbit/s
DHCP client	Y
VoIP protocols	SIP
Networking standards	IEEE 802.3af
Phone features
Lines quantity	1 lines
Call forwarding	Y
Conference call	Y
Redialing	Y
Call pick up	Y
Certificates
Safety	- UL 60950 Second Edition - CAN/CSA-C22.2 No. 60950 Second Edition - EN 60950 Second Edition - IEC 60950 Second Edition - AS/NZS 60950 - GB4943
Certification	- FCC Part 68 (47CFR) (HAC) - Canada-CS-03-HAC - Australia AS/ACIF S004, AS/ACIF S040 - New Zealand- PTC 220 Draft - FCC Part 15 (CFR 47) Class B - ICES-003 Class B - EN55022 Class B - CISPR22 Class B - AS/NZS CISPR22 Class B - VCCI Class B - KN22 Class B - CISPR24 - EN55024 - EN61000-3-2 - EN61000-3-3 - KN 24 - CE markings per directives 2004/108/EC and 2006/95/EC
Management features
Volume control	Digital
Camera
Front camera	N
Packaging content
Number of handles included	1 pc(s)
Design
Product type	IP Phone
Product colour	Chocolate
Handset type	Wired handset
Wall mountable	Y
Performance
Internal memory	32 MB
Flash memory	4 MB
Logistics data
Harmonized System (HS) code	85171800