Question 1

What is Session Initiation Protocol (SIP)?

Accepted Answer

Session Initiation Protocol (SIP) is a signaling standard that sets up, modifies, and ends voice, video, and instant‑messaging sessions over IP networks, enabling internet telephony and private IP phone systems.

Question 2

How many companies implement Session Initiation Protocol (SIP)?

Accepted Answer

Based on our data, 26,473 companies implement Session Initiation Protocol (SIP). This number is updated daily as we discover new companies through job posting analysis.

Question 3

What types of companies implement Session Initiation Protocol (SIP)?

Accepted Answer

Session Initiation Protocol (SIP) is relevant across multiple industries including Medical Equipment Manufacturing, IT Services and IT Consulting, Human Resources Services. Companies range from startups to enterprises with 10,000+ employees.

Question 4

How does TheirStack track companies related to Session Initiation Protocol (SIP)?

Accepted Answer

TheirStack analyzes millions of job postings daily from company career pages, job boards, and recruitment platforms. When a company mentions Session Initiation Protocol (SIP) in their job descriptions, requirements, or responsibilities, we identify them as related to Session Initiation Protocol (SIP) and add them to our database.

Question 5

How can I get the full list of companies that implement Session Initiation Protocol (SIP)?

Accepted Answer

You can access the complete list of 26,473 companies on TheirStack. The data includes company name, industry, size, location, funding, and revenue. Available via our web app or API.

Question 6

How often is the company data updated?

Accepted Answer

Our database is refreshed daily. We continuously monitor job postings to detect new companies implementing Session Initiation Protocol (SIP) and update existing records.

Company	Country	Industry	Employees	Revenue	Technologies
Medtronic	United States	Medical Equipment Manufacturing	102k	$32B	Session Initiation Protocol (SIP)
Wipro	India	IT Services and IT Consulting	297k	$11B	Session Initiation Protocol (SIP)
Safeguard Global	United States	Human Resources Services	1.7k	$54M	Session Initiation Protocol (SIP)
Twilio	United States	Software Development	8.6k	$2.8B	Session Initiation Protocol (SIP)
Vodafone	United Kingdom	Telecommunications	148k	$60B	Session Initiation Protocol (SIP)
DBS Bank	Singapore	Banking	34k	$340M	Session Initiation Protocol (SIP)
Thermo Fisher Scientific	Switzerland	Research Services	130k	$44B	Session Initiation Protocol (SIP)
Costa Coffee	United Kingdom	Retail	19k	$1.2B	Session Initiation Protocol (SIP)
Vonage	United States	IT Services and IT Consulting	2.8k	$1.4B	Session Initiation Protocol (SIP)
General Dynamics Information Technology	United States	IT Services and IT Consulting	103k	$7.9B	Session Initiation Protocol (SIP)

Companies implementing Session Initiation Protocol (SIP)

List of companies that implement Session Initiation Protocol (SIP)