Yealink T77U
Yealink phones › T77U
Yealink T77U Touchscreen Desk Phone
The Yealink T77U is a 7-inch touchscreen desk phone with programmable buttons on the touchscreen and two USB ports, built for a wired desk, sold and installed by Netexem in Tustin for offices across Orange County and Southern California. $199 one-time, or free with a service agreement. Call 714.444.0550 for a quote.
It gives a reception desk the big touchscreen of the T87W for $50 less by leaving Wi-Fi and Bluetooth to optional USB dongles. Below are the specs, the desks it suits, the steps people look up most, and the comparison with the T87W, T85W and T74W.
Reviewed by Joey B, Technician, Netexem · October 2026
Yealink T77U at a glance
- Screen
- 7-inch colour touchscreen (800 x 480) with backlight
- Buttons
- Programmable buttons on the touchscreen, with names and status lights
- Network
- Two Gigabit Ethernet ports, Power over Ethernet (PoE)
- USB
- Two USB ports: USB headset, call recording to a flash drive, Wi-Fi dongle or Bluetooth dongle, any two at once
- Wireless
- Wi-Fi with the Yealink WF50 dongle; Bluetooth with the BT41 dongle (both optional)
- Calls
- Up to 16 phone lines on one set, HD voice with Acoustic Shield noise filtering
- Expansion
- Colour-screen key modules for more colleague keys
- Handset
- Hearing-aid compatible (HAC); desk stand included, wall mount optional
Who the T77U is for
A front desk or office manager on a cabled desk who wants every colleague's name on screen and a transfer that takes one tap. Offices with a PoE switch and a network port at every desk get the full touchscreen experience without paying for wireless they will not use. If the desk has no cable, or staff want a Bluetooth headset without a dongle, the T87W is the better buy.
Yealink T77U quick guide
The steps people look up most, in plain words. Menu names match the T77U's own screen.
How to factory reset a Yealink T77U
- With the phone idle, press and hold the Redial key until the phone asks whether to reset to factory settings, then confirm.
- From the menu instead: Menu > Advanced (default password admin) > Reset Config > Reset to Factory Settings.
- Leave the phone powered on until it has restarted completely; it can take a few minutes.
Note: A Netexem T77U sets itself up again after a reset: once it is back on the network it downloads its settings and returns with your extension, keys and voicemail. Call 714.444.0550 first; most problems are fixed remotely.
How to connect a Yealink T77U to Wi-Fi
- Plug the Yealink WF50 Wi-Fi dongle into a USB port on the back of the phone.
- Tap Menu > Basic > Wi-Fi, turn Wi-Fi On and tap Save; the phone lists the networks in range.
- Tap your network, tap Connect, type the password and tap OK.
The T77U is built for a wired desk; the dongle is for the odd desk with no cable. Ask us to include the WF50 when you order, and remember a Wi-Fi phone needs the $5 power adapter.
How to pair a Bluetooth headset with a Yealink T77U
- Plug the Yealink BT41 Bluetooth dongle into a USB port on the back of the phone and put the headset in pairing mode.
- Tap Menu > Basic > Bluetooth, turn Bluetooth On and tap Scan.
- Tap the headset to connect it. The Bluetooth icon appears at the top of the screen.
A wired USB headset needs no dongle: plug it into either USB port.
How to add an expansion module to a Yealink T77U
- Connect the key module to the port on the side of the phone with the supplied cable and clip it to the phone's stand.
- Netexem programs the module's keys with your colleagues' names over the network; nothing to type on the phone.
- Add a second or third module the same way when the team grows.
Voicemail, call forwarding, hold, conference calls and intercom work the same on every Netexem phone; see the Netexem phone system user guide.
The full Yealink manual covers every feature; the T77U datasheet lists the specifications. Netexem customers can simply call 714.444.0550 and we walk you through it.
Yealink T77U compared
T77U vs T87W
T87W: $249
The same 7-inch touchscreen with Wi-Fi 6 and Bluetooth 5.0 built in, for $50 more.
T77U vs T85W
T85W: $199
Same price, smaller 5.5-inch screen with 12 programmable buttons, but wireless built in: pick it over the T77U when the desk has no cable.
T77U vs T74W
T74W: $169
A 4.3-inch key phone with 10 programmable buttons, Wi-Fi and Bluetooth: our pick for a standard desk that does not need a touchscreen.
See every model side by side on the Yealink phones page.
Netexem service and what's included
$199 one-time per phone on the month-to-month plan, or included free when you sign a service agreement. It runs on Netexem's business phone service at $19.99 or $29.99 per user per month, fixed, with no long-term contract. Installation, staff training and number porting are free, and every install carries a 30-day money-back guarantee from the install date. The pricing page has the full breakdown.
- In the box: the phone, handset and cord, desk stand and a network cable. Wall-mount bracket, WF50 Wi-Fi dongle and BT41 Bluetooth dongle are optional.
- Power: through the network cable (PoE), which we recommend. A power adapter is $5 and is needed if the phone runs on Wi-Fi.
- Warranty: Yealink's 1-year limited manufacturer warranty, extended by a Netexem service agreement; we swap a faulty phone for you.
- Delivery: we bring the phones to the install, or ship them to your office anywhere in the US if you install yourself.
- Already own T77Us: bring them: they work on Netexem service as they are, and our service agreement covers them too.
Details on all of this are in the phone system user guide.
Yealink T77U questions
How much is the Yealink T77U from Netexem?
$199 one-time per phone on the month-to-month plan, or included free with a service agreement. Phone service is $19.99 or $29.99 per user per month, fixed, with free installation, training and number porting and no long-term contract.
Does the Yealink T77U have Wi-Fi and Bluetooth?
Not built in. Either USB port takes the Yealink WF50 Wi-Fi dongle or the BT41 Bluetooth dongle, and both can be used at once. If you want wireless without dongles, the T87W has both built in for $50 more.
What is the difference between the Yealink T77U and T87W?
The screen and keys are the same: 7-inch touchscreen with programmable on-screen buttons, two USB ports, Gigabit PoE. The T87W adds built-in Wi-Fi 6 and Bluetooth 5.0 and costs $249 against the T77U's $199.
Does the Yealink T77U support an expansion module?
Yes. Colour-screen key modules connect to the side of the phone for more named colleague keys; Netexem programs them with the phone.
Who installs the Yealink T77U?
A Netexem technician from our Tustin office installs it on site anywhere in Orange County and Southern California, labels the buttons and trains your staff on install day. If you install yourself, we ship it to your office anywhere in the US; it sets itself up when plugged in and we guide you by phone or screen share.