Cisco CP-3905 IP Phone
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Model: CP-3905
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The Cisco Unified SIP Phone 3905 is designed as a cost-effective, entry-level IP phone that brings essential voice communication capabilities to a variety of professional environments. It is specifically built to meet the needs of spaces such as cubicles, retail stores, classrooms, and manufacturing floors, while also offering flexibility for wall-mounted deployments.
By combining a user-friendly interface with a budget-conscious design, this device ensures that organizations can maintain reliable communication without unnecessary complexity. Furthermore, the phone reflects a commitment to sustainability, as it is constructed using reground and recyclable plastics to minimize its environmental impact.
Product overview
This single-line IP phone supports two concurrent calls per line, providing a practical solution for basic telephony requirements. It features a monochrome graphical display and a full-duplex speakerphone, which together enhance the overall user experience by making call management more intuitive and productive.
To help IT departments manage infrastructure more efficiently, the phone includes a dual-port 10/100 Ethernet switch. This allows for a single connection to both the network and a downstream device like a PC, effectively reducing cabling requirements and administrative overhead. The device is compatible with various Cisco Unified Communications Manager versions, ensuring seamless integration into existing network infrastructures.
Features and benefits
- Ergonomic Hardware: Features a comfortable, traditional design with a foldable foot stand that supports both desk and wall-mounted configurations.
- Intuitive Display: Includes a 128 x 32-pixel monochrome screen that allows users to easily navigate phone services and settings.
- Flexible Connectivity: Equipped with a 10/100BASE-T Ethernet switch for streamlined network and PC integration.
- Comprehensive Call Controls: Offers essential functions such as redial, transfer, hold/resume, mute, and volume adjustment, alongside a full-duplex speakerphone.
- Broad Call Features: Supports a wide range of telephony services including call forwarding, call waiting, conference calling, and message-waiting indicators.
- Audio Quality: Utilizes standard audio codecs (G.711a, G.711μ, G.729, G.729a, and G.729ab) and includes Comfort-Noise Generation (CNG) and Voice-Activity-Detection (VAD) for clearer communication.
- Power Options: Supports Power over Ethernet (PoE) Class 1 for simplified deployment, with options for local power adapters available for various regions.
- Configuration and Management: Provides robust support for DHCP, TFTP, DNS, and web-based configuration, along with real-time monitoring via RTCP and Syslog.
- Multilingual Support: Offers extensive language support to accommodate a global workforce.
Product overview
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.
Features and benefits
Table 1 lists features and benefits of the Cisco Unified SIP Phone 3905.
Table 1.Features and benefits
| Feature |
Benefit |
| Hardware |
|
| Ergonomic design |
The phone offers an easy-to-use interface and provides a traditional telephony-like user experience. |
| Display |
A graphical monochrome display with a resolution of 128 x 32 pixels provides a scrollable two-line intuitive access to phone services and configuration. |
| Foot stand |
A foldable single-position foot stand offers optimum display viewing and comfortable use of keys. |
| Wall mountable |
You can fold the foot stand for wall mounting, with mounting holes located on the base of the phone. |
| Speakerphone |
A full-duplex speakerphone allows for flexibility in placing and receiving calls. |
| Volume control |
The volume control toggle makes it easy to adjust the volume of the handset, speakerphone, and ringer. |
| Ethernet switch |
The phone has a 10/100BASE-T Ethernet connection through two RJ-45 ports, one for the LAN connection and the other for connecting a downstream Ethernet device such as a PC. |
| Buttons |
The phone has the following buttons:
●Select, Back, and Two-Way Navigation
●Redial, Transfer, and Hold/Resume
●Standard dial pad
●Mute, Volume Up/Down, and Speakerphone
|
| Firmware |
|
| Signaling protocol |
Session Initiation Protocol (SIP) is supported. |
| Call features |
●Adjustable volume levels
●Auto barge
●Call forward
●Call pickup
●Call waiting
●Call transfer
●Conference
●Forced Authorization Codes (FAC)
●Group call pickup
●Message-waiting indicator
●Music on hold
●Private-Line Automatic Ringdown (PLAR)
●Redial
●Shared line
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| Audio codec support |
G.711a, G.711μ, G.729, G.729a, and G.729ab. |
| Voice quality |
Comfort-Noise Generation (CNG) and Voice-Activity-Detection (VAD) programming is provided on a system basis. |
| Configuration options |
●Dynamic Host Configuration Protocol (DHCP) client or static configuration
●Support for online firmware upgrades using Trivial File Transfer Protocol (TFTP)
●Domain Name System (DNS)
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| Provisioning and manufacturing |
●Web server for configuration and statistics
●Real-Time Control Protocol (RTCP) support and monitoring
●Syslog
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Cisco unified communications manager support
The Cisco Unified SIP Phone 3905 is supported on the Cisco Unified Communications Manager Version 7.1(5) or later, the Cisco Unified Communications Manager Business Edition 3000 Version 8.6, the Cisco Unified Communications Manager Business Edition 5000 Version 8.5 or later, and the Cisco Unified Communications Manager Business Edition 6000 Version 8.5 or later.
Licensing
Phone licensing depends on the call-control platform and its policies. For the Cisco Unified Communications Manager, the Cisco Unified SIP Phone 3905 requires appropriate User Connect Licensing (UCL). There are no special license-plus-phone bundles for tier 2 distributors. The phone is not supported on third-party call-control systems.
Product specifications
Table 2 lists the specifications of the Cisco Unified SIP Phone 3905.
Table 2.Product specifications
| Protocols |
SIP |
| Connectivity |
10/100BASE-T wired Ethernet LAN port plus switched PC port. |
| Memory |
●4-MB flash memory
●32-MB synchronous dynamic RAM (SDRAM)
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| 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) |
| Weight |
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 one of the power adapters listed in Table 3. |
| Power Input Rating |
1.5A, 4.2V DC |
| 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) |
| Cosmetic |
Cisco Cosmetic Class B |
| Approvals and compliance |
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
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Warranty information
Find warranty information on Cisco.com at the Product Warranties page.
Ordering information
Table 3 lists the ordering information for the Cisco Unified SIP Phone 3905. To place an order,
visit the Cisco Ordering Home Page. To download software, visit the Cisco Software Center.
Table 3.Ordering information
| Product Name |
Part Number |
| Cisco Unified SIP Phone 3905, Charcoal, Standard Handset |
CP-3905= |
| Power Adapter for Cisco Unified SIP Phone 3905, Argentina |
CP-3905-PWR-AR= |
| Power Adapter for Cisco Unified SIP Phone 3905, Australia |
CP-3905-PWR-AU= |
| Power Adapter for Cisco Unified SIP Phone 3905, Brazil |
CP-3905-PWR-BR= |
| Power Adapter for Cisco Unified SIP Phone 3905, Central Europe |
CP-3905-PWR-CE= |
| Power Adapter for Cisco Unified SIP Phone 3905, China |
CP-3905-PWR-CN= |
| Power Adapter for Cisco Unified SIP Phone 3905, India |
CP-3905-PWR-IN= |
| Power Adapter for Cisco Unified SIP Phone 3905, Korea |
CP-3905-PWR-KR= |
| Power Adapter for Cisco Unified SIP Phone 3905, North America |
CP-3905-PWR-NA= |
| Power Adapter for Cisco Unified SIP Phone 3905, United Kingdom |
CP-3905-PWR-UK= |
| Power Adapter for Cisco Unified SIP Phone 3905, South Africa |
CP-3905-PWR-ZA= |
| Spare Handset for Cisco Unified SIP Phone 3905, Charcoal |
CP-3905-HS= |
| Spare Handset Cord for Cisco Unified SIP Phone 3905, Charcoal |
CP-3905-HS-CORD= |
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For more information
For more information about the Cisco Unified SIP Phone 3905,
visit https://www.cisco.com/go/ipphones/3900 or contact your local Cisco account representative.
| Model | CP-3905 |