Companies implementing Public Switched Telephone Network (PSTN)

The PSTN is the worldwide circuit‑switched telephone network run by national, regional, or local carriers, delivering public voice communication services.

2,165

companies

List of companies that implement Public Switched Telephone Network (PSTN)

This is sourced from job postings — companies only hire for what they actively use or plan to adopt · how we source this →

CompanyCountryIndustryEmployeesRevenueTechnologies
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United Kingdom

IT Services and IT Consulting

190k

Public Switched Telephone Network (PSTN)

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United States

IT Services and IT Consulting

315k

$6.3B

Public Switched Telephone Network (PSTN)

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India

IT Services and IT Consulting

253k

Public Switched Telephone Network (PSTN)

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United States

IT Services and IT Consulting

220

$20M

Public Switched Telephone Network (PSTN)

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Hong Kong

Software Development

6.4k

Public Switched Telephone Network (PSTN)

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Canada

IT Services and IT Consulting

1.7k

$600M

Public Switched Telephone Network (PSTN)

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India

IT Services and IT Consulting

370k

$17B

Public Switched Telephone Network (PSTN)

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United States

Hospitals and Health Care

50k

Public Switched Telephone Network (PSTN)

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United States

Financial Services

212k

Public Switched Telephone Network (PSTN)

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India

IT Services and IT Consulting

705k

$27B

Public Switched Telephone Network (PSTN)

Showing top companies out of 2,165 that implement Public Switched Telephone Network (PSTN). Get the full list on TheirStack.

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