3CX Hosted
Active Inbound
Account Management
Account Management (SMS): Summary Reports
Audio Database
Blocking Callers to Your Virtual Number Service
Call Recording Playback Guide
Call Reports
Create New Users
Creating Email Groups
Data Capture & Transcription
Destinations (VN)
Important notice for routing Virtual Number calls to Ireland
Mid Call Transfer
Missed Call Alerts (VN)
Number Manager 1 - Managing Numbers
Number Manager 2 - Requesting New Numbers
Number Translation Service (NTS) - 1. Basic Setup
Number Translation Service - 2. Alternative Routing
Number Translation Service - 3. Adding Voicemail
Number Translation Service - 4. Alternate Service Plans
Number Translation Services 5 - Special Dates
One-2-Many - 1. Basic Setup
One-2-Many - 2. Adding Additional Features
One-2-Many - 3. Alternative Routing
One-2-Many - 4. Special Dates
Outbound Call Recording
Queuing - 1. Queue Configuration
Queuing - 2. Assigning Numbers
RNP Common Settings
Setting Up a New User for Recording
Special Dates (VN)
UK & International Virtual Numbers
Virtual Reception - Disaster Recovery
Virtual Receptionist - Configure Special Dates
Virtual Receptionist - Loading Sound Files
Voice-2-Email
Voicemail (VN)
Working Hours (VN)
Active iPBX
Active iPBX - Extension Activation Email
Active iPBX - User/Extension Voicemail Service
Active iPBX Calls Policy
Business Portal - Administrator Guide
Business Portal - Employee User Guide
Call Queue - Call Distribution Options
Call Recording Portal User Guide
Calling Emergency Services from Active iPBX
Cisco Webex App Quick Start Guide
Contact Directory
Feature Codes
How to Change Site Level Working Hours
How to Create Call Pick up Groups
How to change a user's Application Password
How to re-name an Active iPBX user extension
Put Active iPBX calls on hold and pick up from another extension (Call Park)
Setting up Webex Desktop App
Signing Staff In and Out of Queues
Sound File Format for Active iPBX
Using the Agent Sign In/Out Feature
Webex - How to Forward your Calls
Webex - How to Pick up a call
Webex - How to Transfer a Call
Webex - How to record a personal greeting
Webex - Sign In/Out from Desktop App
Webex - Sign In/Out from Smartphone App
Webex Teams & Spaces
Webex for BroadWorks User guide
Webex: The Difference between Spaces and Teams
What is Active iPBX
ActivePay
Active Pay Assist: Creating a Database
Active Pay: Manual Database Management
ActivePay - Customer Database API
ActivePay Union - Live Call Card Payment Solution
Payment Gateway Integrations
Payment Gateway Test Card Numbers
Payment Line Transaction Reports
Virtual Terminal Overview
Virtual Terminal iFrame Integration Guide V2
XML Transaction Report Guide
Frequently Asked Questions
Headsets
Jabra Evolve 65T - UC Ear buds
Jabra Evolve SE20 UC Mono
Jabra Evolve2 65 - UC Mono
Yealink UH33 Mono Headset
Yealink YHS33 Mono Headset
Hosted Fax Solutions
IP Handsets
Quick Start Guides
Yealink Accessories
DD10K - Yealink DECT USB Dongle
EXP43 Color Expansion Module
RT30 - DECT Repeater
WF40 - Wi-Fi USB Dongle
Yealink IP Handsets
Yealink CP920 Conference Phone
Yealink CP960 Conference Phone
Yealink T31G IP Handset
Yealink T4 U Range Side by Side Specs
Yealink T43U IP Handset
Yealink T46U IP Handset
Yealink T48U IP Handset
Yealink T53 IP Handset
Yealink T53W IP Handset
Yealink T54W IP Handset
Yealink T57W IP Handset
Yealink W53P Wireless DECT Handset & Base Station
Yealink W56H Wireless DECT Handset
Yealink W56P - SIP Cordless Phone System
Mobile Freedom SIM Only
How Does TravelFree & TravelPlus Work?
How Does World Travel Select Work?
What Does 'Roam Like at Home' Mean?
Multi Factor Authentication
Payment Phone
Payment Phone Overview
Softphone User Guides
System Admin Controls
Taking Payments
User Control Dashboard
Pre-recorded Audio Files
Bank Holiday Outgoing Message
Call Whispers
Christmas Holiday Outgoing Message
Comfort Messages
Greeting Messages
IVR Card Payment Line Prompts
IVR Payment Line - Whispers
Menu Options
Miscellaneous Prompts
Voicemail Greetings - Busy No Answer
Voicemail Greetings - Out of Hours
SMS Appointments
SMS Broadcast
Creating Groups in SMS Broadcast
Creating Templates
How to Send an SMS Broadcast
How to Setup Email to SMS Service
Including an 'Opt Out' in Your Broadcast Message
SMS Batch API – REST Interface Specification
SMS Broadcast - Changing the Originator
SMS Broadcast for Schools and Nursery's
SMS Desk
Troubleshooting Guides
Yealink IP Phone Help
iCall Call Reports & Analytics
All Categories > IP Handsets > Yealink IP Handsets > Yealink T4 U Range Side by Side Specs
Yealink have recently update the T4 range moving from the 'S' models to the 'U' models.
This next generation T4U series now comes with dual USB ports making it possible to have both a WIFI Dongle and Bluetooth Headset (or USB Wired Headset) plugged into your phone at the same time. A bump in processing power ensures that all user interactions are ultra quick.
