Cisco 3905 1-Line Unified SIP Phone

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Manufacturer Part Number:
Cisco 3905 Unified SIP Phone CP-3905=
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The incredible Cisco Unified SIP Phone 3905 serves as an entry-level and low cost VoIP solution that is engineered to grow with your small-sized organization.

The phone boasts a monochrome display that features caller ID, phone information and call history. Users can also mount this phone on the wall, which makes it a highly compact device. With a traditional handset along with a standard 12-digit dial pad, the phone offers a 2-way navigation button with a select key. This allows the user to easily move about the up and down menus on the display.

Since it is easy to install, maintain and administer; IT administrators find the Cisco 3905 a cost-effective VoIP phone. The device features an integrated 10/100 Ethernet switch for supporting a co-located PC at the desk. Hence, it is a valuable option for buyers who intend to deploy it at a desk for users with light voice communications needs.

Features and Functions

Here are the features and functions of the Cisco 3905:

  • 2- Conversation feature with full duplex speakerphone
  • Comes in-built with 2 support with a busy trigger (up to 2 concurrent calls)
  • Built-in IEEE 10/100 switch for reducing desktop clutter
  • (MWI) or Message Waiting Indicator feature with light
  • Volume control rocker
  • Graphical monochrome 2-line display
  • Once-touch screen access thanks to fixed feature keys – you can instantly redial, transfer the call, mute and hold any call

The Cisco 3905 SIP is an ideal product if you are looking for an affordable yet superior solution for first-rate voice communications and deployments. It is a perfect accessory where a headset is not required. It costs only $99.






10/100BASE-T wired Ethernet LAN port plus switched PC port.


4-MB flash memory
32-MB synchronous dynamic RAM (SDRAM)

Language support

Arabic (Arabic area), Bulgarian (Bulgaria), Catalan (Spain), Chinese (China), Chinese (Hong Kong), Chinese (Taiwan), Croatian (Croatia), Czech (Czech Republic), Danish (Denmark), Dutch (Netherlands), English (United Kingdom; prompts only), Estonian (Estonia), French (France), Finnish (Finland), German (Germany), Greek (Greece), Hebrew (Israel), Hungarian (Hungary), Italian (Italy), Japanese (Japan), Korean (Korea Republic), Latvian, Lithuanian, Norwegian (Norway), Polish (Poland), Portuguese (Portugal), Portuguese (Brazil), Romanian (Romania), Russian (Russian Federation), Spanish (Spain), Slovak (Slovakia), Swedish (Sweden), Serbian (Republic of Serbia), Serbian (Republic of Montenegro), Slovenian (Slovenia), Thai (Thailand), and Turkish (Turkey) are supported, but in different phases.

Physical dimensions

8.07 x 5.91 x 2.11 in. (205 x 150 x 53.5 mm)

(in slab mode with the foot stand folded)


20.96 oz (594.3g)

Power over Ethernet (PoE)

IEEE PoE 802.3af is supported, Class 1.

Local power

The phone can also be powered locally with optional power adaptor.

Operational Temperature

32 to 104°F (0 ~ 40°C)

Relative Humidity

10 to 95% (noncondensing)

Storage Temperature

14 to 140°F (-10 to 60°C)

Warranty Information

Cisco 90-Day Limited Hardware Warranty Terms The following are terms applicable to your hardware warranty. Your formal Warranty Statement, including the warranty applicable to Cisco software, appears in the Cisco Information Packet that accompanies your Cisco product. Duration of Hardware Warranty: Ninety (90) Days Replacement, Repair or Refund Procedure for Hardware: Cisco or its service center will use commercially reasonable efforts to ship a replacement part within ten (10) working days after receipt of the RMA request. Actual delivery times may vary depending on Customer location. Cisco reserves the right to refund the purchase price as its exclusive warranty remedy.

Cisco 3905 1-Line Unified SIP Phone

Cisco 3905 1-Line Unified SIP Phone