1/3/2023 0 Comments Onsip asteriskOpenSIPS does not have these capabilities. Asterisk has many built-in features that allow it to act as an IP-PBX or business telephone system.Asterisk has media capabilities which means it can be used as an IVR (with menus of options for callers to select using their keypad) or as a voicemail server etc.OpenSIPS has no inbuilt media capabilities – it cannot record or play speech or music. There are several other important differences including: On the other hand, Asterisk does terminate calls and, even if it appears to relay a call onward to another destination, it does so be creating a new call and linking the audio streams to make the two calls appear as one – this behaviour is referred to as a “Back-to-Back User Agent” or B2BUA for short. This means that OpenSIPS is not normally the final end-point for a voice call instead it relays the call control signals from one server to another. Fundamental differencesĪ succinct, but slightly technical, distinction between OpenSIPS and Asterisk is that OpenSIPS is essentially a SIP Proxy Server while Asterisk is essentially a Media Server (for a detailed explanation of these terms click here). This article reviews how they are so different and considers what role each product can play in the infrastructure of an Internet Telephony Service Provider solution. However, they perform quite different roles, have different capabilities and different strengths and weaknesses. OpenSIPS and Asterisk are both open source projects and both are used for Voice over IP.
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