Yealink CP935W Conference Bundle
Setup Guide & User Manual
Download PDF GuideStep by Step
Quick Start
Get your Yealink CP935W Conference Bundle up and running in minutes.
Unbox and Connect
- 1This bundle includes the CP935W conference phone AND a W70B DECT base station.
- 2First, set up the base station: connect Ethernet cable to network, plug in power adapter.
- 3Wait for the base LED to turn green (1-2 minutes for provisioning).
- 4Place the CP935W conference phone on the conference table — it connects to the base wirelessly via DECT.
Pair Phone to Base
- 1On the CP935W touchscreen, go to Menu > Settings > DECT > Register.
- 2Press the pairing button on the base station for 5 seconds.
- 3The phone will find the base and pair automatically.
- 4Once paired, your conference line appears on screen.
Test the Setup
- 1Make a test call to verify audio quality.
- 2Walk the phone around the room to verify DECT range.
- 3The base station provides up to 164ft indoor / 984ft outdoor range.
Features
Key Features
Wireless Conference Phone
- No Ethernet cable needed for the conference phone — it connects to the base via DECT.
- Move the phone between rooms as needed.
- 15-hour talk time battery when running wireless.
Full Duplex & Noise Filtering
- Same premium audio as the standalone CP935W.
- Full duplex speakerphone with noise filtering.
- Covers conference rooms with 16+ seats.
How To
Common Tasks
Step-by-step instructions for the most common phone operations.
Start a Conference Call
- 1Tap the Dial pad, enter the first number.
- 2Once connected, tap Conference, dial the next participant, tap Merge.
- 3Repeat for additional participants.
Mute/Unmute
- 1Tap Mute on the touchscreen. LED ring turns red.
- 2Tap again to unmute.
Move Between Rooms
- 1Simply pick up the phone and move it — the DECT connection stays active within range.
- 2No need to reconnect cables or re-register.
- 3Charge the phone when not in use for maximum battery life.
Troubleshooting
Common Issues & Fixes
Try these solutions before calling support.
No dial tone / phone won't register
Check that the Ethernet cable is firmly connected to the LAN port on the phone and the wall jack or switch. Verify the phone has power (screen should be lit). Try rebooting the phone by unplugging the Ethernet cable for 10 seconds and reconnecting. If the phone still shows 'No Service' or fails to register, contact Simple Fiber support — we may need to re-provision your phone.
Poor call quality / choppy audio
First, run a speed test at fast.com on a computer connected to the same network. If speeds are low, the issue may be your internet connection. Make sure the phone is connected via Ethernet (not WiFi) for best quality. Check that no one is running large downloads or uploads during calls. If the issue persists, contact us — we can prioritize voice traffic on your connection.
Can't hear the other party / one-way audio
Reboot the phone by unplugging the Ethernet cable for 10 seconds. Check that you're not on mute (mute icon on screen). If using a headset, make sure it's properly connected and the audio path is set to headset. If the problem continues, contact support — it may be a network or firewall issue.
Phone keeps rebooting or restarting
Check your Ethernet cable — a loose or damaged cable can cause power cycling on PoE phones. If using a power adapter, make sure it's the original Yealink adapter (third-party adapters can cause issues). If connected through a PoE switch, verify the switch provides enough power. Contact support if reboots continue.
Voicemail not working
Try dialing *97 directly to access voicemail. Make sure your voicemail PIN is set up (default is usually your extension number). If calls aren't going to voicemail, check your call forwarding and answering rules at talk.simplefiber.com. Contact support if you need your voicemail box reset.
Phone disconnects from base
Check the base station power and network connection. Make sure you're within 164ft of the base. Re-pair if needed: Menu > Settings > DECT > Register.
Still Need Help?
Our support team is here for you. We'll get your phone working right.