CISCO 

CP-3905= Cisco 3905 IP Phone - Cable - Wall Mountable, Desktop - Charcoal

Mfg Part Number:  CP-3905=  
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Price: $115.00 + Free Shipping
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In Stock: 274
Last Updated: Nov 19, 2025
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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.

Main Specification
General Information
Manufacturer Cisco Systems, Inc
Manufacturer Part Number CP-3905=
Manufacturer Website Address http://www.cisco.com
Brand Name Cisco
Product Series 3900
Product Model 3905
Product Name 3905 IP Phone
Product Type IP Phone
Technical Information
Base Unit Connectivity Technology Corded
IP Phone Technology VoIP
Total Number of Phone Lines 1
Dialer Type Dial Pad
Speakerphone Yes
Features Indicator
Features Multilingual Menu
Features Call Waiting
Features Conference Call
Features Group Pick-up
Features Comfort Noise Generation
Features Call Forwarding
Features Call Pick-up
Features Messages
Features Voice Activity Detection
Voice Codec G.711u
Voice Codec G.729
Voice Codec G.729a
Voice Codec G.729b
Voice Codec G.711a
Display & Graphics
Display Color Monochrome
Screen Resolution 128 x 32
Interfaces/Ports
Network (RJ-45) Yes
Number of Network (RJ-45) Ports 2
PoE (RJ-45) Port Yes
Management & Protocols
Communication Protocols SIP
Communication Protocols RTCP
Controls/Indicators
Buttons & Keys Type Navigation
Buttons & Keys Type Redial
Buttons & Keys Type Hold Button
Buttons & Keys Type Mute
Buttons & Keys Type Transfer/Conference
Buttons & Keys Type Volume Control
Physical Characteristics
Color Family Gray
Product Color Charcoal
Form Factor Desktop
Form Factor Wall Mountable
Height 2.1"
Width 5.9"
Depth 8.1"
Weight (Approximate) 1.31 lb
Miscellaneous
Certifications & Standards

Regulatory compliance:

  • CE markings per directives 2004/108/EC and 2006/95/EC

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

EMC:

  • 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

Telecom:

  • FCC Part 68 (47CFR) (HAC)
  • Canada-CS-03-HAC
  • Australia AS/ACIF S004, AS/ACIF S040
  • New Zealand- PTC 220 Draft
Software Supported

Unified Communications Manager Business Edition 3000
Country of Origin China
Warranty
Limited Warranty 90 Day
product information
WARNING:: The plastic used in cable products can expose you to lead and lead components, chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm. For more information go to www.P65Warnings.ca.gov
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