Cisco • SKU CP-3905
Cisco CP-3905 — Unified SIP Phone 3905
Cisco Unified SIP Phone 3905 — entry-level single-line SIP desktop IP phone, charcoal, with standard handset, monochrome display, dual-port 10/100 Ethernet switch, and 802.3af PoE Class 1.
- End-of-sale — refurbished only
Download Cisco datasheet ↗ via Cisco official datasheet C78-651588
What is the Cisco CP-3905?
Cisco Unified SIP Phone 3905 — entry-level single-line SIP desktop IP phone, charcoal, with standard handset, monochrome display, dual-port 10/100 Ethernet switch, and 802.3af PoE Class 1.
TFI supplies the CP-3905 refurbished to South African businesses, each unit covered by warranty and optional SLA. As a B-BBEE Level 2 distributor we can quote stock, lead time and price — usually within the same business day.
Specifications
| lines | Single line, 2 calls per line (SIP) |
|---|---|
| display | Monochrome graphical, 128 x 32 px, 2-line scrollable |
| ports | Dual-port 10/100 Ethernet switch (RJ-45 network + PC) |
| poe | IEEE 802.3af PoE, Class 1 (AC power adapter optional/separate) |
| codecs | G.711a, G.711u, G.729, G.729a, G.729ab |
| form factor | Desktop / wall-mountable, charcoal; 205 x 150 x 53.5 mm (8.07 x 5.91 x 2.11 in) |
| fixed keys | Redial, transfer, hold/resume; full-duplex speakerphone |
| eol status | End-of-Life announced; last order date Oct 28, 2026. Successor: Cisco Desk Phone 9811 |
End-of-life status
The CP-3905 is end-of-sale
Cisco has declared the CP-3905 end-of-sale, so it is no longer manufactured new. TFI supplies it professionally refurbished and tested.
Why refurbished still makes sense: a refurbished CP-3905 delivers the same proven performance at a fraction of the new-equipment cost, backed by a TFI warranty and SLA. It is the practical choice for spares, expansion of an existing deployment, or extending the life of a network you are not ready to replace. Talk to us about a successor model if you are planning a refresh.
Frequently asked questions
- What is the Cisco CP-3905?
- Cisco Unified SIP Phone 3905 — entry-level single-line SIP desktop IP phone, charcoal, with standard handset, monochrome display, dual-port 10/100 Ethernet switch, and 802.3af PoE Class 1.
- Is the CP-3905 still supported?
- The Cisco CP-3905 has reached end-of-sale, so it is supplied refurbished. TFI back every refurbished unit with a warranty and SLA options, which makes it a cost-effective choice where the platform still fits your network.
- Does the CP-3905 support PoE?
- PoE on the CP-3905: IEEE 802.3af PoE, Class 1 (AC power adapter optional/separate).
- How many ports does the CP-3905 have?
- Port configuration: Dual-port 10/100 Ethernet switch (RJ-45 network + PC).
- Can TFI deliver the CP-3905 in South Africa?
- Yes. TFI is a South African distributor (B-BBEE Level 2) and ships the Cisco CP-3905 nationwide. Send us the SKU and we come back with stock, lead time and price — usually the same business day.
Also in the Cisco Unified Desktop IP Phone
-
CP-6901-C-K9
Cisco UC Phone 6901, Charcoal, Standard Handset
-
CP-6901-CL-K9
Cisco UC Phone 6901, Charcoal, SlimLine Handset
-
CP-6901-W-K9
Cisco UC Phone 6901, White, Standard Handset
-
CP-6901-WL-K9
Cisco UC Phone 6901, White, SlimLine Handset
-
CP-6911-C-K9
Cisco UC Phone 6911, Charcoal, Standard Handset
Verification sources (5)
- https://www.cisco.com/c/en/us/products/collateral/collaboration-endpoints/unified-sip-phone-3905/data_sheet_c78-651588.html
- https://www.cisco.com/c/en/us/products/collateral/collaboration-endpoints/unified-sip-phone-3900-series/unified-sip-phone-3905-eol.html
- https://www.provantage.com/cisco-systems-cp-3905~7CSCT096.htm
- https://rqcommunications.com/product/cisco-unified-sip-phone-standard-handset-charcoal-refurb/
- https://www.shi.com/product/23713621/Cisco-Unified-SIP-Phone-3905
Need pricing on CP-3905?
Send us the SKU. We come back with stock, lead time and price — typically within the same business day.