VoIP And SIP
VoIP And SIP focus on delivering voice communications and multimedia sessions over the internet, optimizing efficiency in digital communication.
34
technologies
5,288
companies
List of companies using VoIP And SIP
curl --request POST \
--url "https://api.theirstack.com/v1/companies/search" \
--header "Accept: application/json" \
--header "Content-Type: application/json" \
--header "Authorization: Bearer <api_key>" \
-d "{
\"tech_filters\": {
\"technology_category_slug_or\": [
\"voip\"
]
}
}"| Company | Country | Industry | Employees | Revenue | Technologies |
|---|---|---|---|---|---|
 Germany | Telecommunications | 226k | $123B | T-Systems | |
 Poland | IT Services and IT Consulting | 3.7k | T-Systems | ||
Germany | IT Services and IT Consulting | 15 | T-Systems | ||
Germany | IT Services and IT Consulting | 501 | $150M | T-Systems | |
 United States | Financial Services | 31k | $8.2B | T-Systems | |
Germany | Software Development | 350 | $71M | T-Systems | |
Germany | IT Services and IT Consulting | 181 | T-Systems | ||
United States | Defense and Space Manufacturing | 10k | Cisco VoIP | ||
 United Kingdom | Hospitals and Health Care | 193k | $105B | T-Systems | |
United States | IT Services and IT Consulting | 94 | $2.6M |  Zoiper |
We have data on 5.3k companies and users that use VoIP And SIP. Our VoIP And SIP users and customers list is available for download and comes enriched with vital company specifics, including industry classification, organizational size, geographical location, funding rounds, and revenue figures, among others.
Frequently asked questions