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.
Table 1 shows the Quick Spec.
| Product Code | CP-3905 |
| 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) |
| 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. |
Figure 1 shows the buttons and hardware.
Note:
| Number | Buttons | Number | Buttons |
| ① | Handset | ⑧ | Hold button |
| ② | Previous button | ⑨ | Redial button |
| ③ | Message waiting indicator | ⑩ | Keypad |
| ④ | Phone screen | Speakerphone button | |
| ⑤ | Navigation Pad and Select (center) button | Volume button | |
| ⑥ | Application button | Mute button | |
| ⑦ | Transfer button |
Figure 2 shows the unboxing view.
