SIP (Session Initiation Protocol)
Definition
SIP (Session Initiation Protocol) is a text-based network protocol developed for establishing, controlling, and terminating communication sessions in IP-based networks. It is an open standard that is primarily used in Internet telephony (VoIP). SIP is responsible exclusively for signaling—i.e., negotiating, starting, and terminating connections—while other protocols handle the transmission of voice and video data. In addition to telephony, SIP also enables video calls and instant messaging.
Advantages
- Enables flexible control of voice, video, and text channels
- Open standard, easy to integrate into existing IT infrastructures
- Supports encrypted connections via SIPS
- Scalable – suitable for individual calls through to complex enterprise solutions
Application in OpenTalk
OpenTalk uses SIP for the integration of classic VoIP services. This allows SIP-based telephone systems to be connected or SIP trunks to be used to participate in OpenTalk communication via existing infrastructures. OpenTalk can thus be seamlessly integrated into hybrid communication landscapes – especially where modern video conferencing solutions meet established telephony systems.
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