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 →
| Company | Country | Industry | Employees | Revenue | Technologies |
|---|---|---|---|---|---|
United Kingdom | IT Services and IT Consulting | 190k | Public Switched Telephone Network (PSTN) | ||
United States | IT Services and IT Consulting | 315k | $6.3B | Public Switched Telephone Network (PSTN) | |
India | IT Services and IT Consulting | 253k | Public Switched Telephone Network (PSTN) | ||
United States | IT Services and IT Consulting | 220 | $20M | Public Switched Telephone Network (PSTN) | |
Hong Kong | Software Development | 6.4k | Public Switched Telephone Network (PSTN) | ||
Canada | IT Services and IT Consulting | 1.7k | $600M | Public Switched Telephone Network (PSTN) | |
India | IT Services and IT Consulting | 370k | $17B | Public Switched Telephone Network (PSTN) | |
United States | Hospitals and Health Care | 50k | Public Switched Telephone Network (PSTN) | ||
United States | Financial Services | 212k | Public Switched Telephone Network (PSTN) | ||
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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