1. Taw qhia
This manual provides detailed instructions for the setup, operation, and maintenance of your Mitel Networks 6873I SIP Phone. Please read this manual thoroughly before using the device to ensure proper functionality and to prevent damage.

Image 1: The Mitel Networks 6873I SIP Phone. This image displays the front view of the phone, highlighting its display screen, keypad, and handset cradle. The phone is black with a clear, readable screen.
2. Cov ntsiab lus ntawm pob
Xyuas kom tseeb tias txhua yam khoom muaj nyob hauv pob:
- Mitel Networks 6873I SIP Phone Unit
- Tes tes
- Tes Ntawb
- Ethernet Cable
- Power Adapter (if not using Power over Ethernet)
- Phau Ntawv Qhia Pib Ceev
3. Teeb tsa
3.1 Txuas lub xov tooj
- Txuas lub handset: Ntxig ib kawg ntawm txoj hlua tes uas dov rau hauv lub xov tooj thiab lwm kawg rau hauv qhov chaw ntsaws tes ntawm lub hauv paus xov tooj.
- Txuas mus rau Network:
- Connect one end of the Ethernet cable to the LAN port on the phone.
- Txuas lwm qhov kawg ntawm Ethernet cable rau koj lub network hloov lossis router.
- If using Power over Ethernet (PoE), the phone will power on automatically.
- Txuas fais fab (yog tias tsis siv PoE): Plug the power adapter into the power port on the phone and then into an electrical outlet.
- Connect PC (Optional): If you wish to connect a computer through the phone, plug an Ethernet cable from your computer into the PC port on the phone.
3.2 Pib Boot-up
Upon successful connection, the phone will power on and begin its boot-up sequence. This process may take a few minutes as the phone obtains network configuration and registers with your SIP server. The display will show progress messages.
4. Cov lus qhia ua haujlwm
4.1 Hu rau
- Nqa lub handset los yog nias lub Hais lus khawm.
- Hu rau tus lej xov tooj uas xav tau siv lub keypad.
- Nias lub Hu rau nias lub khawm mos los yog tos kom qhov kev hu xov tooj txuas tau.
4.2 Teb Kev Hu
Thaum lub xov tooj rings:
- Nqa tes.
- Xwb, nias lub Hais lus khawm teb hauv hom lus hais lus.
- Nias lub Teb mos yuam sij.
4.3 Xaus Kev Hu
Txhawm rau xaus qhov kev hu ua haujlwm:
- Muab lub handset rov qab rau hauv nws lub txaj.
- If using speakerphone, press the Hais lus khawm dua los yog Xaus Hu mos yuam sij.
4.4 Basic Call Features
- Tuav: Thaum lub sijhawm hu, nias lub Tuav soft key. Press it again to resume the call.
- Hloov Mus: Thaum lub sijhawm hu, nias lub Hloov tus yuam sij mos, hu rau tus lej tshiab, thiab tom qab ntawd nias Hloov dua.
- Suab nrov: Nias lub Ntshai button to mute your microphone. Press it again to unmute.
- Volume Control: Siv cov Ntim buttons to adjust handset, speaker, or ringer volume.
5. Kev tu
5.1 Ntxuav lub xov tooj
- Siv lub mos, damp cloth to clean the phone's surface.
- Tsis txhob siv cov tshuaj ntxuav abrasive lossis cov kuab tshuaj, vim tias cov no tuaj yeem ua puas rau qhov tiav.
- Do not spray cleaning liquids directly onto the phone.
5.2 Firmware Hloov tshiab
Firmware updates are typically managed by your system administrator. Do not attempt to manually update the firmware unless instructed by your IT department or Mitel support.
6. Kev daws teeb meem
| Teeb meem | Ua Tau | Kev daws |
|---|---|---|
| Xov tooj tsis muaj hwj chim rau. | No power connection or PoE issue. |
|
| Tsis tuaj yeem hu lossis txais kev hu. | Network connectivity issue or SIP registration failure. |
|
| Tsis muaj suab nrov. | Handset or speakerphone not activated, or network issue. |
|
7. Cov lus qhia tshwj xeeb
- Qauv: Mitel Networks 6873I
- Tshooj Naj Npawb: 50006790
- Qhov Loj (L x W x H): 1.1 x 8.27 x 3.94 po (kwv yees)
- Qhov hnyav: 2.42 phaus (kwv yees)
- Xim: Dub
- Khoom siv: Yas
- Lub zog Source: Corded Electric / Power over Ethernet (PoE)
- Xovtooj: Corded SIP Xov Tooj
8. Warranty thiab Support
For warranty information and technical support, please refer to the documentation provided with your purchase or visit the official Mitel website. Contact your system administrator for immediate assistance with network or configuration issues.
Mitel Official Webqhov chaw: www.mitel.com





