1. Introduktion
This manual provides comprehensive instructions for the setup, operation, maintenance, and troubleshooting of the Cisco Unified SIP Phone 3905 (Model CP-3905=). This cost-effective, entry-level IP phone is designed for basic voice communications within a Cisco Unified Communications environment. It is suitable for various deployments including cubicles, retail, classrooms, manufacturing floors, hallways, and wall-mounted installations.
2. Sikkerhedsoplysninger
Please read all safety warnings and instructions before installing or operating the phone. Failure to do so may result in injury or damage to the device.
- Use only power adapters specified for this device. Note that a power supply is ikke inkluderet with the phone and must be acquired separately.
- Udsæt ikke telefonen for vand eller for høj luftfugtighed.
- Undgå at placere telefonen i nærheden af varmekilder eller i direkte sollys.
- Sørg for korrekt ventilation omkring enheden.
- Forsøg ikke at åbne eller reparere telefonen selv. Overlad al service til kvalificeret personale.
3. Pakkens indhold
Bekræft at alle varer er til stede i pakken:
- Cisco VoIP phone (Model CP-3905=)
- Håndsæt
- Håndsætledning
- Ethernet kabel
- Note: Power supply is not included and must be purchased separately.
4. Fysiske egenskaber og komponenter

Figure 4.1: Cisco Unified SIP Phone 3905 (CP-3905=)
This image displays the black Cisco Unified SIP Phone 3905 from an angled perspective, highlighting its ergonomic design. The phone features a standard numeric keypad, dedicated function keys, a two-line display screen, and a coiled handset cord. The speakerphone grille is visible on the base unit.
The Cisco Unified SIP Phone 3905 features an ergonomic design for comfortable use. Key components include:
- Håndsæt: Standard telefonrør til private samtaler.
- Tastatur: Standard 12-button numeric keypad for dialing.
- Vise: Two-line display for call information, menus, and status.
- Navigationsklynge: Buttons around a central select button for navigating menus on the display.
- Fixed Keys: Dedicated buttons for common functions:
- Genopkald: Initiates a call to the last dialed number.
- Overførsel: Omstiller et aktivt opkald til en anden part.
- Hold/Genoptag: Places an active call on hold or resumes a held call.
- Højttalertelefon: Activates or deactivates the full-duplex speakerphone.
- Lydstyrkekontrol: Adjusts handset, headset, or speakerphone volume.
- Foot Stand: Integreret stativ til brug på skrivebordet.
- Vægmonterbar: Designed for optional wall mounting.
- Ethernet-porte: Dual-port 10/100 Ethernet switch for network and PC connections.
5. Opsætning og installation
5.1 Strømtilslutning
The Cisco Unified SIP Phone 3905 requires an external power supply (not included). Connect the appropriate power adapter to the phone's power input port and then to a power outlet.
5.2 Netværksforbindelse
The phone features a dual-port 10/100 Ethernet switch. Use an Ethernet cable to connect the phone's network port (typically labeled "SW" or "Network") to your network switch or router. An additional port (typically labeled "PC") is available to connect a computer, reducing cabling infrastructure at the desktop.
5.3 Handset Connection
Connect the coiled handset cord to the handset and to the corresponding port on the phone base.
5.4 Placering
Place the phone on a stable, flat surface using its integrated foot stand, or mount it on a wall using compatible wall mounting hardware (sold separately).
6. Betjeningsvejledning
6.1 Foretage et opkald
- Løft røret eller tryk på Højttalertelefon knap.
- Indtast det ønskede nummer ved hjælp af tastaturet.
- The call will connect automatically or after a brief delay.
6.2 Besvarelse af et opkald
Når telefonen ringer, skal du løfte røret eller trykke på Højttalertelefon knappen for at svare.
6.3 Afslutning af et opkald
Place the handset back on the cradle or press the Højttalertelefon button again to end a call.
6.4 Using Fixed Keys
- Genopkald: Tryk på Genkald button to call the last number dialed.
- Overførsel: During an active call, press Overførsel, dial the new number, and then press Overførsel igen for at fuldføre.
- Hold/Genoptag: Trykke Hold / genoptag to place a call on hold. Press it again to resume the call.
- Lydstyrkekontrol: Brug Bind buttons to adjust the listening volume during a call or the ringer volume when idle.
6.5 Skærmnavigation
Use the navigation cluster (up, down, left, right arrows, and select button) to scroll through menus and select options displayed on the two-line screen.
7. Vedligeholdelse
To ensure the longevity and proper functioning of your Cisco Unified SIP Phone 3905, follow these maintenance guidelines:
- Rensning: Brug en blød, tør og fnugfri klud til at rengøre telefonens yderside. Tør let ved genstridige pletter.ampRengør kluden med vand. Undgå at bruge skrappe kemikalier, slibende rengøringsmidler eller opløsningsmidler.
- Fjernelse af støv: Regularly wipe down the phone to prevent dust buildup, especially around the keypad and speakerphone grille.
- Ledningsstyring: Ensure handset and network cords are not tangled or pinched, which can lead to damage.
- Miljøforhold: Keep the phone in a cool, dry place, away from direct sunlight, extreme temperatures, and high humidity.
8. Fejlfinding
This section addresses common issues you might encounter with your Cisco Unified SIP Phone 3905.
| Problem | Mulig årsag | Løsning |
|---|---|---|
| Telefonen tænder ikke. | No power supply connected or faulty power supply/outlet. | Ensure a compatible power supply is connected and the outlet is functional. Remember, the power supply is sold separately. |
| Ingen klartone eller kan ikke foretage/modtage opkald. | Network connection issue; phone not registered with VoIP system. | Check Ethernet cable connection. Verify network status. Contact your IT administrator to ensure the phone is properly configured and registered on the VoIP system. |
| Display is blank or damaged. | Power issue; physical damage. | Check power connection. If physically damaged, contact support for repair or replacement. |
| Dårlig lydkvalitet (ekko, statisk støj). | Netværksbelastning; defekt kabel; miljøforstyrrelser. | Check network connection. Try a different Ethernet cable. Ensure no strong electrical interference sources are nearby. |
If the problem persists after attempting these solutions, please contact your system administrator or Cisco support.
9. Specifikationer
| Feature | Detalje |
|---|---|
| Modelnummer | CP-3905= |
| Produktmål (L x B x H) | 10.3 x 8.7 x 2.4 tommer |
| Varens vægt | 1.31 pund |
| Forbindelsesteknologi | Kablet |
| Telefontype | ledning |
| Opkaldstype | Manuelt tastatur |
| Strømkilde | Corded Electric (Power supply not included) |
| Farve | Sort |
| Vise | To-linjers display |
| Ethernet-switch | Dual-port 10/100 Ethernet |
| Højttalertelefon | Fuld duplex |
| Monteringsmuligheder | Foot stand, Wall mountable |
10. Garanti og support
For warranty information and technical support, please refer to the documentation provided with your purchase or visit the official Cisco support website. Ensure you have your product model number (CP-3905=) and serial number ready when contacting support.
Du kan finde flere oplysninger og supportressourcer på Cisco-butik på Amazon or the main Cisco webwebsted.





