Insights

Acquisition Opportunity Recent acquisition by Avtex in January 2018 signals consolidation in contact center solutions and potential cross-sell of QoS Telesys' SIP/VoIP, multisite, and call center expertise to Avtex customers or integration opportunities with Avtex platforms.

Niche Focus Specialization in multisite and call center applications with SIP and VoIP know-how positions QoS Telesys to target small to mid-sized enterprises seeking scalable, future-proof telecom deployments and cost-effective mobility and reliability solutions.

Financial Growth Revenue range of 1-10M suggests a lean, specialized firm with room for upsell into larger service contracts, recurring maintenance, and managed services around legacy Nortel/Avaya/Interactive Intelligence equipment.

Legacy Technology Expertise around Nortel, Avaya, and Interactive Intelligence equipment creates opportunities to offer migration planning, refurbishment, and modernization services to customers with aging systems seeking upgrades.

Tech Stack & Deployments Utilizing common web and hosting technologies (PHP, Apache, Bootstrap) and security measures (HSTS) implies potential to upsell modern hosted or cloud-based communication solutions, SIP trunking, and VoIP integration for clients with on-premises setups.

QoS Telesys Tech Stack

QoS Telesys uses 8 technology products and services including 1&1, Office 365, PHP, and more. Explore QoS Telesys's tech stack below.

  • 1&1
    E-commerce
  • Office 365
    Office Suites
  • PHP
    Programming Languages
  • HSTS
    Security
  • Piwik
    System Analytics & Monitoring
  • Bootstrap
    UI Frameworks
  • IONOS
    Web Hosting
  • Apache
    Web Servers

QoS Telesys's Email Address Formats

QoS Telesys uses at least 1 format(s):
QoS Telesys Email FormatsExamplePercentage
First@qostelesys.comJohn@qostelesys.com
100%

Frequently Asked Questions

What is QoS Telesys's phone number?

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You can contact QoS Telesys's main corporate office by phone at . For more prospecting data, LeadIQ has access to up-to-date and accurate contact information within our platform. Find, capture, and sync contact data to your CRM and sales tools in one click.

What is QoS Telesys's official website and social media links?

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QoS Telesys's official website is qostelesys.com and has social profiles on LinkedIn.

What is QoS Telesys's SIC code NAICS code?

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QoS Telesys's SIC code is 4812 - Radiotelephone Communications NAICS code is 517 - Telecommunications.

How many employees does QoS Telesys have currently?

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As of July 2026, QoS Telesys has approximately 8 employees across 1 continents, including North America. Key team members include President: K. C.. Explore QoS Telesys's employee directory with LeadIQ.

What industry does QoS Telesys belong to?

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QoS Telesys operates in the Telecommunications industry.

What technology does QoS Telesys use?

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QoS Telesys's tech stack includes 1&1Office 365PHPHSTSPiwikBootstrapIONOSApache.

What is QoS Telesys's email format?

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QoS Telesys's email format typically follows the pattern of First@qostelesys.com. Find more QoS Telesys email formats with LeadIQ.

When was QoS Telesys founded?

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QoS Telesys was founded in 2001.
QoS Telesys logo

QoS Telesys

TelecommunicationsCalifornia, United States2-10 Employees

QoS Telesys is a telecommunications company based in Buena Park, California, specializing in the sale and service of equipment from Nortel, Avaya, and Interactive Intelligence. The firm focuses on multisite and call center applications, leveraging its expertise in SIP and VoIP to deliver cost-effective telecommunications solutions that emphasize mobility, reliability, and future-proofing for its clients.
The company serves businesses seeking robust, scalable communication infrastructure, particularly for distributed environments and contact center operations. Positioned within the telecommunications industry, QoS Telesys operates from a small-team footprint and has a history that includes a notable organizational development in early 2018, when it was acquired by Avtex, a provider of integrated interaction solutions. This context places the company within a broader network of service providers focused on contact center and communications technology.

Section iconCompany Overview

Phone number
SIC Code
4812 - Radiotelephone Communications
NAICS Code
517 - Telecommunications
Founded
2001
Employees
2-10

Section iconFunding & Financials

  • $1M$10M

    QoS Telesys's revenue is estimated to be in the range of $1M$10M

Section iconFunding & Financials

  • $1M$10M

    QoS Telesys's revenue is estimated to be in the range of $1M$10M

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