SIP / Session Initiation Protocol

The Session Initiation Protocol (SIP) is a signaling and call setup protocol for VOIP (Voice Over IP) communications. It can be used to create two-party, multiparty, or multicast sessions that include Internet telephone calls, multimedia distribution, and multimedia conferences. It can also be used in any application where session initiation is a requirement like presence and events notifications, instant messaging and Internet real-time fax delivery signaling. SIP is designed to be independent of the underlying transport layer and for this reason SIP clients can use TCP or UDP (typically on port 5060) to connect to SIP servers and other SIP endpoints.

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Similar topics

Knowledge base

• Connection protocol
  
• Client-side certificates
  
• URL protocol
  
• Force SIP OPTIONS request
  
• Advanced Target Types
  

Howtos

• Microsoft Entra single sign-on (SSO) integration with WebSitePulse
  

Glossary

• IP / Internet Protocol
  
• NNTP / Network News Transfer Protocol
  
• ICMP / Internet Control Message Protocol
  
• FTP / File Transfer Protocol
  
• RTSP / Real-Time Streaming Protocol
  

Frequently asked questions

• What does it mean when my contacts are notified that my system is down?
  
• Do you provide WAP monitoring?
  
• How often does WebSitePulse.com check my site?
  
• What exactly is being checked and monitored?