1. Introducció
This manual provides detailed instructions for the setup, operation, and maintenance of your Snom 300 IP Phone. The Snom 300 is a SIP-based business telephone designed for efficient communication in professional environments. It features a backlit display, programmable function keys, and support for various VoIP functionalities.
Please read this manual thoroughly before using your device to ensure proper functionality and to maximize its capabilities.
2. Informació de seguretat
Observe the following safety guidelines to prevent damage to the device or injury to yourself:
- No exposeu el telèfon a l'aigua ni a la humitat.
- Avoid placing the phone near heat sources or in direct sunlight.
- Use only the power supply specified for this device (if not using Power over Ethernet).
- Keep the phone away from strong electromagnetic fields.
- No intenteu obrir ni reparar el dispositiu vosaltres mateixos. Encarregueu totes les tasques de manteniment a personal qualificat.
3. Contingut del paquet
Comproveu que el vostre paquet contingui els elements següents:
- Snom 300 IP Phone unit
- Telèfon
- Cordó enrotllat de l'auricular
- Cable Ethernet
- Suport d'escriptori
- Guia d'instal·lació ràpida (si s'inclou)

Imatge 3.1: Contents of the Snom 300 IP Phone package, including the main phone unit, handset, coiled cord, Ethernet cable, and desk stand.
4. Sobrecàrrega físicaview
Familiarize yourself with the components of your Snom 300 IP Phone.

Imatge 4.1: Davant view of the Snom 300 IP Phone, showing the display, navigation keys, dial pad, and programmable function keys.
4.1 Tauler frontal
- Visualització: 2 x 16 character backlit LCD for call information and menu navigation.
- Tecles de navegació: Up, Down, Left, Right, and OK buttons for menu interaction.
- Teclat de marcatge: Standard 12-key numeric keypad.
- Tecles de funció programables: 6 keys with LEDs for speed dials, line appearances, or feature access.
- Control de volum: Buttons to adjust handset, headset, and speakerphone volume.
- Botó d'altaveu: Activa/desactiva l'altaveu.
- Botó d'auriculars: Toggles between headset and handset/speakerphone.
- Message Waiting Indicator (MWI) LED: Flashes to indicate new voicemail messages.
4.2 Panell posterior i ports

Imatge 4.2: posterior view of the Snom 300 IP Phone, highlighting the Ethernet ports, handset port, and optional power input.
- Port LAN (RJ45): Connects to your network switch or router. Supports Power over Ethernet (PoE).
- PC Port (RJ45): Connects to your computer, allowing it to share the network connection through the phone's built-in switch.
- Handset Port (RJ9): Connects the coiled cord from the handset.
- Headset Port (RJ9): Connects an optional headset.
- Entrada d'alimentació (5 V CC): For connecting an optional external power adapter if PoE is not used.
5. Configuració
Follow these steps to set up your Snom 300 IP Phone.
5.1 Assembling the Phone
- Attach the desk stand to the back of the phone unit. Ensure it clicks securely into place.
- Connect one end of the coiled cord to the handset and the other end to the Handset Port (RJ9) on the rear of the phone.

Imatge 5.1: lateral view of the Snom 300 IP Phone, demonstrating the attached desk stand for optimal viewangle de ing.
5.2 Connexió a la xarxa i a l'alimentació
The Snom 300 supports Power over Ethernet (PoE) or an external power adapter.
- For PoE: Connect one end of the Ethernet cable to the LAN Port (RJ45) on the phone and the other end to a PoE-enabled network switch or router. The phone will power on automatically.
- Without PoE: Connect one end of the Ethernet cable to the LAN Port (RJ45) on the phone and the other end to your network switch or router. Then, connect a compatible 5V DC power adapter (sold separately) to the Power Input port on the phone and plug it into a power outlet.
- (Optional) PC Connection: If you wish to connect your computer through the phone, connect an Ethernet cable from your computer to the PC Port (RJ45) on the phone.
- (Optional) Headset Connection: If using a headset, connect it to the Headset Port (RJ9) on the rear of the phone.
5.3 Arrencada inicial
Once connected to power and network, the phone will begin its boot-up sequence. The display will show boot progress and then typically display network information or a 'No Service' message until configured. Network configuration (IP address, SIP account details) is usually handled by your network administrator or VoIP service provider.
6. Funcionament bàsic
6.1 Fer una trucada
- Aixequeu l'auricular o premeu la tecla Altaveu button, or press a line key.
- Dial the desired phone number using the dial pad.
- Premeu el botó OK button or wait a few seconds for the call to initiate automatically.
6.2 Respondre a una trucada
Quan sona el telèfon:
- Aixequeu l'auricular.
- Premeu el botó Altaveu botó.
- Premeu la tecla de línia intermitent.
6.3 Finalització d'una trucada
- If using the handset, place it back in the cradle.
- Si feu servir l'altaveu o els auriculars, premeu la tecla Altaveu or Auriculars de nou o premeu el botó Finalitzar la trucada soft key (if available on display).
6.4 Ajust del volum
Durant una trucada, utilitzeu Volum buttons (up/down arrows) to adjust the volume of the handset, headset, or speakerphone.
6.5 Using Programmable Function Keys
The 6 programmable function keys can be configured for various features such as speed dial, busy lamp field (BLF), or direct access to specific functions. Their exact functionality depends on your system's configuration.
7. Funcions avançades
7.1 Call Hold
Durant una trucada activa, premeu Aguanta soft key (if available on display) or a designated programmable key. To retrieve the call, press the same key again or the flashing line key.
7.2 Transferència de trucades
The Snom 300 supports both blind and attended transfers.
- Transferència a cegues: Durant una trucada activa, premeu Transferència soft key, dial the transfer destination number, and press Transferència de nou.
- Trasllat assistit: Durant una trucada activa, premeu Transferència soft key, dial the transfer destination number, wait for the party to answer, announce the call, and then press Transferència de nou per completar.
7.3 3-Way Conferencing
To initiate a 3-way conference call:
- Establir una trucada amb la primera part.
- Premeu el botó Conferència soft key (or a designated programmable key). The first party is put on hold.
- Dial the second party's number and wait for them to answer.
- Premeu el botó Conferència soft key again to join all three parties.
7.4 Do Not Disturb (DND)
The DND feature allows you to send all incoming calls directly to voicemail or a busy signal. Access this feature through the phone's menu or a designated programmable key. When active, a DND icon typically appears on the display.
7.5 Address Book and Call Lists
The phone maintains an internal address book (up to 100 entries) and lists of missed, received, and dialed calls (up to 100 entries each). Navigate to these features using the menu and navigation keys.
8. Manteniment
8.1 Neteja del telèfon
To clean your Snom 300 IP Phone:
- Disconnect the phone from power before cleaning.
- Utilitzeu un suau, damp drap per netejar les superfícies.
- Do not use abrasive cleaners or solvents, as these can damage the finish.
- Assegureu-vos que no entri humitat als ports o obertures.
8.2 actualitzacions de microprogramari
Firmware updates are typically managed by your network administrator or VoIP service provider. Do not attempt to update the firmware yourself unless instructed to do so by qualified personnel, as incorrect procedures can render the device inoperable.
9. Solució De Problemes
If you encounter issues with your Snom 300 IP Phone, refer to the following common problems and solutions:
| Problema | Causa possible | Solució |
|---|---|---|
| El telèfon no s'encén | No power connection; Faulty Ethernet cable/PoE switch; Faulty power adapter. | Check Ethernet cable connection to LAN port. Ensure PoE is active or external power adapter is correctly connected and functional. |
| Sense to de marcatge | Network issue; SIP account not registered; Handset/headset not connected properly. | Verify network connectivity. Check SIP registration status on the display. Ensure handset/headset is securely plugged in. Contact your administrator if SIP registration fails. |
| No puc fer/rebre trucades | SIP account not registered; Network firewall blocking VoIP traffic; Incorrect dial plan. | Confirm SIP account registration. Check network settings and firewall rules with your IT department. Verify dial plan configuration. |
| La pantalla està en blanc o congelada | Temporary software glitch; Power issue. | Perform a power cycle: Disconnect power for 10 seconds, then reconnect. If the issue persists, contact support. |
9.1 Restabliment de fàbrica
A factory reset will erase all custom configurations and restore the phone to its default settings. This should only be performed as a last resort and typically under the guidance of your network administrator, as it requires re-provisioning the phone. Consult your administrator for the specific procedure for your Snom 300 model.
10. Especificacions
Key technical specifications for the Snom 300 IP Phone (Model REF-666949):
- SIP Identities: 4
- Ports Ethernet: 2 x IEEE 802.3 10/100 Mbps (LAN, PC)
- Potència: Power over Ethernet (PoE) or optional 5V DC power adapter
- Visualització: 2 x 16 character, backlit LCD
- Claus: 27 keys, including 6 programmable function keys with LEDs
- Còdecs d'àudio: G.711, G.729A, G.723.1, G.722, G.726, GSM 6.10 (full rate)
- Seguretat: SIPS/SRTP, TLS
- Característiques: Headset connection, Speakerphone (full duplex), Caller-ID, Message Waiting Indication, Address book (100 entries), Speed dialing, Call lists (100 entries each), Call waiting, 3-way conferencing, Do Not Disturb (DND), XML mini-Browser.
- Dimensions: Aproximadament 7.87 x 4.72 x 7.28 polzades (L x W x H)
- Pes: Aproximadament 1.61 lliures
11. Garantia i Suport
This Snom 300 IP Phone is a Certified Refurbished product. It has been tested and certified to look and work like new. The refurbishing process includes functionality testing, basic cleaning, inspection, and repackaging. The product ships with all relevant accessories and a minimum 90-day warranty.
For technical support or warranty claims, please refer to the specific support channels provided by your reseller or VoIP service provider. Do not attempt to open or modify the device, as this may void your warranty.





