Yealink T67LTE User Manual

The Yealink T67LTE is a high-performance LTE desk phone designed for business communications, featuring a 7-inch color touchscreen, support for 4G LTE networks, HD voice quality, Bluetooth connectivity, dual Gigabit Ethernet ports, PoE support, and integration with major IP-PBX platforms. Below are key sections for safety, features, installation, setup, operation, and troubleshooting.

1. Features at a Glance 2. Installation 3. First-Time Setup 4. Specifications 5. Controls and Settings 6. Connecting Devices 7. Advanced Features 8. Accessibility Features 9. Care & Cleaning 10. Regulatory Information 11. Troubleshooting

Features at a Glance

Key components: 7-inch capacitive touchscreen, LTE antenna, Handset, Base unit, Ethernet ports, Power adapter, SIM card slot.

Feature	Description
7-inch Touchscreen	Color LCD with capacitive touch for intuitive navigation
4G LTE Support	Built-in LTE modem for cellular connectivity
HD Voice	Wideband audio for crystal-clear calls
Bluetooth 4.2	Connect wireless headsets and devices
Dual Gigabit Ethernet	LAN and PC ports for network connectivity
Power over Ethernet (PoE)	IEEE 802.3af compliant for simplified power
USB Port	For future expansions and updates
Headset Port	3.5mm jack for wired headset connection
Conference Capability	Supports up to 5-party conference calls
Multiple Codecs	G.722, G.711, G.729, Opus

Installation

Unpack and inspect contents. Place on stable desk surface.

Insert SIM card: Locate SIM slot, insert nano-SIM with chip facing down.
Connect network: Use Ethernet cable to connect LAN port to router/switch.
Connect handset: Plug handset cord into dedicated port on base.
Power the phone: Use included power adapter or PoE from switch.
Extend LTE antenna: Attach and position antenna for best signal.

WARNING! Use only approved power adapter. Ensure proper ventilation around device.

First-Time Setup

Power on phone; follow on-screen setup wizard.

Select language: Choose preferred language from list.
Network configuration: Choose LTE or Ethernet as primary WAN.
Account registration: Enter SIP server details provided by your service provider.
Test call: Make a test call to verify audio quality and connectivity.
Configure preferences: Set time zone, ringtones, and screen timeout.

CAUTION! Keep SIM card and device away from static electricity and moisture.

Specifications

Display: 7-inch TFT LCD, 800 x 480 resolution, capacitive touch.
Network: 4G LTE Cat4, 10/100/1000 Mbps Ethernet.
Audio: HD handset and speakerphone, acoustic echo cancellation.
Connectivity: Bluetooth 4.2, USB 2.0, 3.5mm headset jack.
Protocols: SIP RFC3261, TLS, SRTP, IPv4/IPv6.
Power: 12V DC, 1.5A adapter or IEEE 802.3af PoE.
Operating Temp: 0°C to 40°C (32°F to 104°F).
Supported Platforms: BroadWorks, Asterisk, 3CX, Skype for Business.

Controls and Settings

Access settings via touchscreen menu or web interface (IP address). Physical Buttons: MUTE, VOLUME UP/DOWN, HEADSET, NAVIGATION keys.

Touchscreen: Home screen with dial pad, contacts, call history, settings.

Basic Settings: Language, time/date, ringtone selection, screen brightness. Network: WAN selection (LTE/Ethernet), static/DHCP, VLAN configuration. Account: SIP registration, server address, authentication. Audio: Volume levels, codec priority, echo cancellation. Security: Admin password, TLS/SRTP enablement.

Connecting Devices

Ethernet: LAN port to network. PC: Use PC port for daisy-chaining. Headset: Bluetooth or wired via 3.5mm jack.

Turn off phone before connecting wired peripherals.
Pair Bluetooth headset: Enable Bluetooth on phone, put headset in pairing mode.
Connect to LTE: Ensure SIM is active and antenna is properly positioned.

Tip: For best LTE performance, place antenna near window or open area.

Advanced Features

Supports advanced business telephony features.

Conference calls: During active call, press CONF button to add participants.
Call transfer: Press TRANSFER, enter destination number.
Call recording: Press RECORD during call (if enabled by service provider).
Speed dial: Assign numbers to programmable keys.
BLF (Busy Lamp Field): Monitor status of colleagues.
VPN support: Configure for secure remote connectivity.
Firewall traversal: STUN and ICE for NAT environments.
Firmware upgrade: Via web interface or TFTP.

WARNING! Do not attempt firmware upgrade during active calls.

Accessibility Features

Visual: Adjustable screen contrast and font size. Audio: Hearing aid compatible (HAC) handset, adjustable ringer volume. Physical: Large tactile buttons on navigation pad.

Care & Cleaning

Unplug power before cleaning. Use slightly damp, lint-free cloth for screen and body. Do not use abrasive cleaners or solvents.

CAUTION! Avoid getting moisture into openings. Keep away from direct heat sources.

Regulatory Information

FCC Part 15: Class B digital device; complies with limits for residential use. ICES-003: Complies with Canadian EMI standards. LTE certification: Meets carrier requirements for 4G networks. Copyright © 2023 Yealink Inc. For support, visit www.yealink.com or contact your authorized reseller.

Troubleshooting

Symptom	Possible Cause	Corrective Action
No LTE signal	SIM/antenna	Ensure SIM is active; reposition antenna; check coverage area.
No audio on calls	Volume/mute	Check volume settings; ensure mute is off; verify handset connection.
Cannot register to SIP	Network/credentials	Verify network connectivity; check SIP username/password; confirm server address.
Touchscreen not responsive	Calibration	Restart phone; perform touchscreen calibration in settings.
Bluetooth pairing fails	Distance/interference	Ensure headset is in pairing mode; reduce distance; avoid interference.

Reset: Press and hold MUTE key for 10 seconds during boot for factory reset.

Service: Contact Yealink support or authorized service center.