Cisco Unified SIP Phone 3905 Charcoal (11 Lines, PoE) - 3905
SKU: CP-3905=Cisco › Cisco VoIP Phones & Headsets· Model: 3905
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The distributor has not yet confirmed the latest price and availability (last checked Oct 1, 2026)
092-251-4017Awaiting stock confirmationManufacturer's warranty
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Cisco's 3905 office VoIP phone supports Ethernet (PoE) connectivity with a 128x32 pixel display, works with Cisco Unified Communications Manager, and supports up to 11 line appearances.
Key features
- Supports power over Ethernet (PoE) per IEEE 802.3af standard.
- 128x32 pixel monochrome display, clear even in low light.
- Supports up to 11 line appearances.
- Uses SIP protocol, compatible with CUCM.
- Easy installation, no separate power outlet required.
Product description
The Cisco Unified SIP Phone 3905 is a mid-range IP phone designed for efficient communication in medium to large organizations. It supports power delivery over Ethernet (PoE) per IEEE 802.3af, enabling easy installation and reducing cable clutter. The 128x32 pixel monochrome display clearly shows call information, caller ID, and device status, even in low light. It supports up to 11 line appearances and features 0 programmable keys, offering flexibility for users who need customized function assignments. This phone uses the SIP protocol and is compatible with Cisco Unified Communications Manager (CUCM), requiring a minimum User Connect Licensing (UCL) version 7.1(5) or later. It is ideal for organizations seeking a reliable, scalable communication system.
More features
- Compatible with Power Cube 3.
- Designed for office use, durable for heavy-duty environments.
- Supports wall mount installation with optional accessories.
- No additional power module required.
- Ideal for organizations requiring a reliable communication system.
Pros and limitations
Pros
- Supports PoE, reducing cable clutter.
- 128x32 pixel monochrome display, clear even in low light.
- Supports up to 11 line appearances, offering versatile usage.
- Uses SIP protocol, compatible with widely used CUCM systems.
- Easy installation, no separate power plug required, saves space.
Limitations
- No programmable buttons, limiting flexibility in function customization.
- Small display, not ideal for users needing extensive information.
- Additional UCL license required when used with CUCM.
Who it is for
Ideal for office employees who need a VoIP phone supporting up to 11 line appearances and efficient integration with Cisco Unified Communications Manager.
Connectivity
SIP
Specifications (31)
- Brand
- CISCO
- Color
- Charcoal
- Model
- CP-3905
- Protocol
- SIP
- Display Size
- 128 x 32 pixels
- Display Type
- Monochrome LCD
- Handset Type
- Standard Handset
- License Type
- Essential License
- Power Supply
- Ethernet PoE (IEEE 802.3af)
- Product Type
- IP Phone
- Compatibility
- Cisco Unified Communications Manager (CUCM)
- Display Color
- Black and White
- Ethernet Ports
- 2 (SW and PC)
- Ethernet Speed
- 10/100 BASE-T
- License Bundle
- SW-CCME-UL-3905
- VoIP Protocols
- SIP
- Number of Lines
- 11
- Mounting Options
- Desk or Wall
- Operating System
- Cisco Unified IP Phone OS
- Power Cube Model
- Power Cube 3 for Cisco IP Phones
- Programmable Keys
- 0
- Display Resolution
- 128 x 32
- Power Cube Support
- Yes
- License Requirement
- User Connect Licensing (UCL)
- Power Over Ethernet
- 802.3af
- Series Release Date
- 22-DEC-2006
- Minimum CUCM Version
- 7.1(5)
- Supported Accessories
- Wall Mount Kit
- Wall Mount Kit Support
- Yes
- Built-in Ethernet Switch
- Yes
- Firmware Upgrade Support
- Yes
Compatibility
Cisco Collaboration System
Datasheets and manuals straight from the manufacturer — select a document to open or download it.
13 questions
Frequently asked questions about this product
Compiled from manufacturer information
How many line appearances does the 3905 phone support?
The Cisco Unified SIP Phone 3905 supports up to 11 line appearances, making it ideal for users managing multiple lines simultaneously in an office environment.
What licenses are required when using the 3905 with Cisco Unified Communications Manager?
When using the 3905 with Cisco Unified Communications Manager (CUCM), you must have a minimum User Connect Licensing (UCL) version 7.1(5) or later, available from Cisco or authorized resellers.
What power sources can the 3905 phone use?
The 3905 supports power over Ethernet (PoE) per IEEE 802.3af and can be used with the Power Cube 3 for IP Phone as a backup power source.
Does the 3905 require an additional power module?
No additional module is required for power supply, as this model supports PoE directly. However, you can still use Power Cube 3 if desired
What CUCM versions is the 3905 compatible with?
The 3905 is compatible with Cisco Unified Communications Manager (CUCM) version 7.1(5) or later. Verify your system version before installation.
Are there programmable keys?
The 3905 has 0 programmable keys, so specific function assignments cannot be made via front-panel buttons.
Can it be wall mounted?
Yes, the 3905 supports wall mount installation using a separate wall mount kit.
Is it compatible with CUCME?
Yes, the 3905 model supports Cisco Unified Communications Manager Express (CUCME), but requires an additional license, SW-CCME-UL-3905, per device.
Is it in stock?
We are confirming the latest stock and price of the Cisco Unified SIP Phone 3905 Charcoal (11 Lines, PoE) - 3905 with the distributor. Please contact us before ordering at 092-251-4017 or sales@gist.co.th.
How much does it cost?
The distributor has not yet confirmed the latest price and availability. Please contact us before ordering at 092-251-4017 or sales@gist.co.th.
How long is the warranty?
The warranty follows the manufacturer's terms for each model; ask our sales team for the warranty period of this model. To make a warranty claim, call 092-251-4017 or 065-523-5262, or email sales@gist.co.th (Mon–Fri 9:00–18:00), then send the product with your order number to our head office, or bring it to the head office in person.
How long does delivery take?
Orders placed before 12:00 on a business day are delivered within 1–3 business days (Bangkok and vicinity) or 2–5 business days (other provinces). Free delivery on orders of ฿5,000 or more (a ฿150 delivery fee applies below this amount).
Is it genuine?
Genuine products sourced from distributors in Thailand, covered by the manufacturer's warranty. Full tax invoices are available.
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Genuine products
Sourced from distributors in Thailand and covered by the manufacturer's warranty
Warranty period
According to the manufacturer's terms for each model
Covered by the manufacturer's warranty; you can make claims through GIST
Claims through GIST
Ship the product to our head office or bring it in person
Warranty conditions
- A receipt or other proof of purchase is required
- The product must not have been modified or altered
- Damage caused by misuse is not covered by the warranty
- To make a warranty claim, call 092-251-4017 or 065-523-5262, or email sales@gist.co.th (Mon–Fri 9:00–18:00), then send the product with your order number to our head office, or bring it to the head office in person.Head office: 554 Sky Nine Center, Floor 12A, Room 554/62, Asok-Din Daeng Road, Din Daeng Subdistrict, Din Daeng District, Bangkok 10400
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