How to reset my Yealink IP Phone to factory settings?
To reset your Yealink IP Phone to factory settings: 1. First try all troubleshooting suggestions. 2. Go to Menu->Settings->Advanced Settings (default password: admin) ->Reset Config->Reset to Factory Settings. 3. Tap the Enter soft key. 4. Tap the OK soft key.
Why does my Yealink IP Phone display “No Service”?
The LCD screen displays “No Service” when no SIP account registers successfully.
Why can't I receive calls on my Yealink IP Phone?
If you're not receiving calls on your Yealink IP Phone, here are a few things to check: * Confirm SIP registration with your system administrator. * Ensure DND (Do Not Disturb) mode is deactivated. * Verify call forwarding is disabled. * Check if the caller's number is in the blacklist directory.
How to upgrade firmware on Yealink IP Phone?
To upgrade the firmware on your Yealink IP Phone: 1. Go to Settings->Upgrade. 2. Click Browse to find the firmware file on your local system. 3. Click Upgrade to start the firmware upgrade process. 4. A prompt will appear: “Firmware of the SIP Phone will be updated. It will take 5 minutes to complete. Please don't power off!”. 5. Click OK to confirm.
What to do if my Yealink IP Phone displays "Network unavailable"?
If your Yealink IP Phone displays "Network unavailable", check these items: * Ensure the Ethernet cable is properly connected to the Internet port on the phone and is not loose. * Verify that the switch or hub in your network is working correctly.
Why doesn't my Yealink IP Phone ring?
If your Yealink IP Phone isn't ringing, check the ringer volume on the phone.
How do I reboot my Yealink IP Phone?
To reboot your Yealink IP Phone, go to Settings->Upgrade, and then click Reboot.
How to fix a blank LCD screen on my Yealink IP Phone?
If the LCD screen on your Yealink IP Phone is blank, try the following: * Make sure the phone is properly plugged into a working AC outlet. * Confirm the phone is plugged into a socket controlled by a switch, and the switch is on. * If using a power strip, try plugging the phone directly into a wall outlet. * If your CP920 IP conference phone is powered by PoE, ensure you are using a PoE compliant switch or hub.
How to export PCAP trace from Yealink IP Phone?
To export a PCAP trace from your Yealink IP Phone: 1. Go to Settings->Configuration. 2. Click Start to begin capturing signal traffic. 3. Recreate the error you want to document in the trace. 4. Click Stop to stop the capture. 5. Click Export to open the file download window, and then save the file to your local system.
How do I export all diagnostic files from my Yealink IP Phone?
To export all diagnostic files from your Yealink IP Phone: 1. Go to Settings->Configuration. 2. Click Start to begin capturing signal traffic. 3. Reproduce the issue. 4. Click Stop to stop the capture. 5. Click Export to open the file download window, and then save diagnostic files to your local system. If the issue cannot be reproduced, just directly click Export to export all diagnostic files.
General| Control type | Buttons |
|---|---|
| Display type | LCD |
| Product type | IP conference phone |
| Voice codecs | CNG, G.722, G.722.1C, G.723, G.726, OPUS, VAD, iLBC |
| Certification | CE |
| Product color | Stainless steel |
| Built-in display | Yes |
| Display diagonal | 3.1 \ |
| Display resolution | 248 x 120 pixels |
| Phonebook capacity | 1000 entries |
| Security algorithms | HTTPS |
| Ethernet LAN data rates | 10, 100 Mbit/s |
| Ethernet interface type | Fast Ethernet |
| Microphone direction type | Omnidirectional |
| AC input voltage | 100 - 240 V |
| USB version | 2.0 |
| Storage temperature (T-T) | -10 - 40 °C |
| Operating relative humidity (H-H) | 10 - 90 % |
| Harmonized System (HS) code | 85176990 |
Weight and Dimensions| Depth | 298 mm |
|---|---|
| Width | 307.8 mm |
| Height | 66.9 mm |
| Package depth | 364 mm |
| Package width | 336 mm |
| Package height | 112 mm |
Describes the physical parts of the CP920 IP conference phone and their functions.
Explains the meaning of various icons displayed on the CP920 IP phone's LCD screen.
Details the status indicated by the LED lights on the CP920 IP phone.
Explains how to customize the CP920 IP phone using the phone interface and web browser.
Lists available documentation for the CP920 IP conference phone, including quick start and user guides.
Lists all items included in the CP920 IP conference phone package.
Provides instructions on how to physically install the CP920 IP conference phone.
Guides through the initial setup and boot process of the CP920 IP conference phone.
Explains how to view network and account status information on the CP920 IP phone.
Details how to configure IP settings (IPv4/IPv6) for the CP920 IP phone.
Covers connecting the CP920 IP phone to a Wi-Fi network.
Explains the process of registering the CP920 IP phone with the network.
Describes the default screen displayed when the CP920 IP phone is not in use.
Explains how to input text and numbers using the CP920 IP phone's keypad.
Covers basic phone configurations like power saving, contrast, language, and time/date.
Explains how to adjust volume, ring tones, key tones, and touch tones on the phone.
Details how to manage local directory, blacklist, favorites, and remote phone books.
Describes how to view, place calls from, and manage call history records.
Explains how to configure lists for searching contacts during dialing.
Covers logo customization and programmable keys for the phone.
Details how to register SIP and Yealink Cloud accounts on the phone.
Provides steps for registering and managing SIP accounts on the CP920 IP phone.
Explains how to register and manage a Yealink Cloud account on the phone.
Describes how the phone processes dialed numbers and features like Replace Rule and Dial Now.
Outlines fundamental call operations like placing, answering, and ending calls.
Details how to initiate calls using the keypad, directories, or call history.
Explains how to handle incoming calls, whether in another call or not.
Describes how to view and use recently dialed numbers.
Covers enabling automatic answering of incoming calls.
Explains how to configure automatic redialing for busy numbers.
Describes how the phone notifies the caller when a busy party becomes available.
Explains how to place a call back to the last incoming call.
Details how to mute the microphone during calls or while dialing.
Explains how to place active calls on hold and resume them.
Covers enabling DND to automatically reject incoming calls.
Explains static and dynamic call forwarding configurations.
Details methods for transferring calls (Blind, Semi-Attended, Attended).
Describes enabling the feature to receive new calls during an active call.
Explains how to set up and manage local and network conference calls.
Covers placing calls on hold and retrieving them from other phones.
Details how to answer calls directed to other extensions or groups.
Explains how to make calls without revealing your identity.
Covers rejecting incoming calls from anonymous callers.
Introduces advanced features like recording, intercom, and paging.
Explains how to record calls and conferences using a USB drive.
Details how to use the intercom feature for quick internal communication.
Covers broadcasting announcements to groups via multicast.
Explains configuring music to play for callers on hold.
Describes sharing an extension across multiple IP phones.
Covers sharing a SIP line on two or more IP phones.
Explains how to manage voice mail and message waiting indicators.
Guides on enabling and disabling Bluetooth on the IP phone.
Explains how to pair and connect mobile devices via Bluetooth.
Details using the IP phone for mobile calls via Bluetooth.
Covers using the phone as a speaker for media audio.
Explains how to make the phone visible to other Bluetooth devices.
Describes how to change the phone's Bluetooth device name.
Guides on how to disconnect paired Bluetooth devices.
Explains how to set up and configure PSTN accounts using expansion boxes.
Details how to set the default account for PSTN usage.
Guides on selecting the correct country setting for PSTN functionality.
Explains how to configure the hook flash timing for PSTN calls.
Lists basic call features applicable to PSTN accounts.
Describes how to set up conference calls using PSTN accounts.
Introduces advanced features applicable when using PSTN.
Explains using the recording feature with PSTN box connections.
Addresses common problems like finding phone info and MAC addresses.
Solves problems related to the LCD screen being blank or showing errors.
Guides on changing user passwords and troubleshooting login problems.
Helps resolve problems with receiving calls or recording calls.
Addresses issues with phone ringing and hold tones.
Explains how to diagnose network connectivity using Ping and Traceroute.
Covers exporting PCAP traces, system logs, and boot logs for analysis.
Provides steps for rebooting, upgrading firmware, and resetting the phone.
Lists time zones for configuring the phone's date and time.
Provides a visual map of the phone's menu hierarchy.
Lists features not supported when using PSTN accounts.
Information on service agreements applicable to the product.
Legal disclaimer regarding Yealink's liability for product use.
Essential safety precautions for installing and operating the device.
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