---
title: How a Telecomms Business Unified Data Across Marketing, Sales, and Revenue in Just 3 Months
description: See how Rev.io integration with HubSpot is made possible for Estech Systems, Inc. (ESI), a cloud and on-premise phone systems provider, in this case study.
---

[Case Studies ](https://www.molestreet.com/case-studies)

# [How a Telecomms Business Unified Data Across Marketing, Sales, and Revenue in Just 3 Months](https://www.molestreet.com/case-studies/rev-io-integration)

 Written by [Mole Street](https://www.molestreet.com/case-studies/author/mole-street) | Dec 4, 2025 9:10:10 PM

## Client Overview

Estech Systems, Inc. (ESI) is a U.S.-based provider of cloud and on-premises phone systems. Since 1987, the company has sold 400,000+ systems and deployed 3 million phones, helping businesses communicate with confidence.

 

Client: Estech Systems, Inc. (ESI)  
Industry: Telecommunications  
Solution Delivered: Custom Rev.io-to-HubSpot integration and technical consulting  
HubSpot Products Used: Marketing Hub Professional, Sales Hub Enterprise, Operations Hub Starter

 

[View full post](https://www.molestreet.com/case-studies/rev-io-integration)

```json
{
  "@context" : "http://schema.org",
  "@type" : "BlogPosting",
  "author" : {
    "@type" : "Person",
    "name" : "Mole Street"
  },
  "dateModified" : "2025-12-05T04:15:35.425Z",
  "datePublished" : "2025-12-04T21:10:10Z",
  "headline" : "How a Telecomms Business Unified Data Across Marketing, Sales, and Revenue in Just 3 Months",
  "image" : {
    "@type" : "ImageObject",
    "height" : 562,
    "url" : "https://4949049.fs1.hubspotusercontent-na1.net/hubfs/4949049/Case%20Studies/Estech%20Systems/Mole-Street-Website-Case-Study-Estech-Featured.jpg",
    "width" : 840
  },
  "mainEntityOfPage" : "https://www.molestreet.com/case-studies/rev-io-integration",
  "publisher" : {
    "@type" : "Organization",
    "logo" : {
      "@type" : "ImageObject",
      "height" : 60,
      "url" : "/hs/hsstatic/content_shared_assets/static-1.4092/img/default-amp-logo.png",
      "width" : 60
    },
    "name" : "Case Studies"
  }
}
```