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Telesys Voice and Data IT Services Overview

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IT Delivery That is Second to None

IT support technician

Computer and network support for Texas small and midsized businesses.

Downtime is a profit killer. At Telesys Voice and Data, we recognize that in order to maximize profitability, your company’s IT has to be up-and-running. That’s why we provide comprehensive IT support to small and midsized businesses in the Texas area. Our computer support services are delivered in an affordable, monthly rate based on the hardware you have in place. Take advantage of optimal uptime and experience for yourself the benefits that Telesys Voice and Data’s managed IT and computer repair services present businesses like yours.


We Provide Professional IT Consulting Services

Telesys Voice and Data's IT Consulting Services

Providing thorough and flexible IT road maps for small and midsized companies in the Texas area.

Every business-minded professional understands the conscept of cost. Small and midsized businesses need to be efficient to be competitive.

At Telesys Voice and Data, we deal in efficiency.

We provide comprehensive IT Consulting Services to companies that are looking to leverage their company's IT into higher degrees of productivity, and ultimately, less cost and more profits.


IT Vendor Management - Let us be your Virtual CIO

Stop Dealing with Third-Party Support

Manage your business relationships, not your hardware and software vendors.

Get better, faster support through a single point of contact.

Did you ever put up with a computer issue for days because you don’t want to have to spend hours on the phone with the manufacturer’s support?  We understand completely.  Third-party tech support can run you around in circles before getting anywhere when you really need things to be back up and running so your staff can operate normally.


Outsourced IT Helpdesk Support from Telesys Voice and Data

Telesys Voice and Data Proactive Maintenance Plan

Reduce downtime, increase profitability, and make your technology work for you.

Telesys Voice and Data is dedicated to keeping your technology investment up and running smoothly so you can focus on your business.  You can relax knowing our partnership with your organization means we take your IT personally, and strive to keep your staff productive with the tools they need to drive your business forward.
Change the way you think about IT with Telesys Voice and Data.


Remote Monitoring

Affordable and Flat-rate Remote Monitoring & Maintenance Solutions

Proactively prevent network and workstation IT issues with our remote monitoring solution.

We know how frustrating it can be whenever a computer, a printer, or your network goes down. It prevents people from being able to complete their daily tasks, which adds to the cost of operations, and the cost of repairing the problem. With Telesys Voice and Data’s remote monitoring service, you never have to worry about that again.


Maintain Business Continuity with our Data Backup and Recovery Services

Managed Services Complete Backup and Business Continuity

Is your data secure?  Would it survive a disaster?
Can you afford to take a chance?

Any seasoned computer technician will tell you, there are two types of hard drives - those that have failed and those that will fail.  The only question is when.  With Managed Services Complete Backup & Disaster Recovery, you can have peace of mind knowing all of your data is continuously archived, redundant, and ready to restore at a moment's notice, even after a major disaster. Do you have a disaster recovery plan for your business crytical server? 


Data Recovery and Retrieval

We offer Data Recovery in the Event of Disaster

Don't Lose Hope. Telesys Voice and Data has a solution for your data loss issues.

Like every other mechanism, disk drives have an expiration date. When they fail and you didn't have the foresight to backup your data, you don't have to give up. At Telesys Voice and Data we have data recovery solutions that will ensure that you aren't going to lose all your hard work or other vital information. For those that have been the victims of hardware meltdown, and didn't have their data backed up, Telesys Voice and Data have data recovery solutions for all types of hardware. These data recovery solutions are there for you when you have exhausted all other retrieval possibilities.



Why do customers love the ESI Cloud PBX?

The ESI eCloud PBX features easy administration using the web-based Cloud dashboard, giving users real-time visibility into their business communications. The ESI solution is designed specifically to work in sync with ESI designed and manufactured business phones, providing an end to end integrated communication system. ESI delivers solutions that are easy to use, manage, buy and deploy making it easy to communicate!

Easy to Use

Experience the most user-friendly phone system, designed to increase productivity and keep your business growing.

  • One-touch Help & How-To videos ease pressure on IT staffs that support users.
  • Visual voice mail delivered to your email so you see who has called your with click to dial capabilities.
  • View the availability status of co-workers with color-coded presence icons.

Easy to Manage

Give system administrators control to manage routine changes and customization across all sites connected to your system.

  • Web-based administration dashboard guides users through set-up and simple programming
  • Drag-and-drop button mapping makes changes a snap.
  • Automatic software updates mean you'll always be up to date with the latest enhancements.

Easy to Buy

Flexible, role-based user packages  allow companies to stop paying for features that aren't used and no hidden extra charges. 

  • Stop overpaying for features that your employees do not use or need.
  • On-demand conference bridges save money from expensive subscriptions.
  • 30-day money-back guarantee for all ESI products.

Easy to Deploy

With many options for deployment, ESI offers  users the flexibility to connect multiple devices to the office while on-the-go or working remotely.

  • ePhoneGO (our mobility application) extends office features to a tablet or smartphone device.
  • Connect up to three devices per user for more flexible communications.
  • Office Caller IDs displayed across all connected devices.

What makes our Cloud solution so unique?

  • Easy to use & manage: intuitive and easy to use solution equipped with the features that customers want, managed from a convenient user administration dashboard.
  • Cost savings: avoid the large up-front costs with a simple, single monthly cost versus a large upfront expense. The cost of your new phone is even included in the price of the user seat!
  • Advanced features: ESI IntelitouchTM is the unique interaction between the phones and the system, providing advanced capabilities across all of your connected devices. Connect up to three devices to make sure you're never out of touch!
  • Simple installation and local support: the eCloud PBX is simple to install and set-up, but if you do run into issues Telesys is always ready to provide you fast and local support!

Key Features

Web-based administration

View voice mail, call history, contacts, and your corporate contacts and availability. 

Manage call preferences and devices

ESI ePhoneGO mobile application

Sync your mobile device to your office phone and keep employees connected to the corporate office even while in the field. Use Wi-Fi and mobile data instead of cellular minutes.

Easy phone programming

Quickly program and personalize the ESI phone from the dashboard and forget the complicated “star codes.” Simple drag-n-drop phone programming makes changes and updates easy. 

Presence indication

 View co-worker availability in the Contacts list using color-coded icons. Easily manage your own availability allowing coworkers to see if you are on the phone or available.

Visual voice mail

View voicemail messages in the web dashboard and easily manage messages or click to return calls.


Click any number from your dashboard to call instantly.  Access from contacts, call history or voicemail. 
Visual corporate directory

View and manage your corporate contacts in a simple directory.

Automated help

Access an automated help menu to quickly get the information you need with one touch.

Multiple-device support

Use up to three phones per extension so that your important calls reach you, no matter where in your workplace you may be at the moment.

ESI VoIP Business Phones

ESI is focused on designing and delivering the best in VoIP business phones.  All phones are manufactured by ESI, enabling a deep integration between the phone and the Cloud platform, creating an end-to-end solution.

Purposefully designed ESI phones are purposefully designed to work with ESI solutions and deliver the best business communication experience for every customer.
One touch features No complicated start codes to remember for basic phone features, ESI has made it one touch simple for call recording, transfer, call park, conferencing, and voicemail and DND with fixed or programmable keys. 
Easy to use Loaded with advanced capabilities yet incredibly intuitive to use with features for everyday use all at the touch of a button. 
Simple support  Information is easily accessed to learn how to use ESI phone features.  All ESI phones have a HELP button that takes users directly to a menu for help. 
Lifetime Warranty ESI sets the gold standard for phone warranty in this market, offering advanced warranty for the life of the service contract.  

Cloud Services Business Phones


Business Phone is perfect for lower-traffic ESI Cloud PBX users who need access to system features but require less customization.


  • Network:  Ethernet 10/100 Mbps power over Ethernet (POE)
  • ESI Products:  IP Server 900, ESI Cloud PBX, ESI SIP Trunks          
  • Programmable keys: 12
  • Dedicated Voicemail key
  • ESI quick HELP key 
  • Display:  two-line, 32 character display,  adjustable backlighting
  • Full duplex speakerphone
  • Access to web-based dashboard


The ESI 45SIP Business Phone is ideal for most active ESI Cloud PBX users

  • Network:  Ethernet 10/100/1000 Mbps power over Ethernet (POE)
  • ESI Products:  IP Server 900, ESI Cloud PBX, ESI SIP Trunks          
  • Programmable keys: 16
  • Dedicated Voicemail key
  • ESI quick HELP key 
  • Display:  three-line, 56 character display,  adjustable backlighting
  • Full duplex speakerphone
  • Integrated headphone jack
  • Access to web-based dashboard

VoIP or Digital Phone Systems?phone connected to Earth

The digital and VoIP (Voice Over Internet Protocol) telephone systems are the main types of systems manufactured today.

Although VoIP is receiving all the "hype" and is the newest technology platform, VoIP itself is only a new way to transport a call and not the way calls are processed. VoIP technology works by sending voice calls over the internet eliminating plain old telephone service (POTS) to make a call. Though calls can now be made over the internet, it does not eliminate the need for a phone service provider (carriers) to connect your voice calls to the outside world.


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