OpenSIPS vs Asterisk
OpenSIPS and Asterisk are both open source projects and both are used for Voice over IP. However, they perform quite different roles, have different capabilities and different strengths and weaknesses....
View ArticleSIP User Credentials in the ITSP environment – part 1
This three-part article reviews the SIP entities that identify a user, a handset or service and looks at how they are used to register devices, authenticate and identify users and route calls. The...
View ArticleSIP User Credentials in the ITSP environment – part 2
In part 1 of this article we reviewed the basic entities and concepts used to identify a user, a handset or service. It discussed in detail how these entities are used to register devices, either...
View ArticleSIP User Credentials in the ITSP environment – part 3
In this, the third part of the article, we will look at how the ITSP Proxy server handles outbound calls, paying particular attention to the authentication requirements and to the handling of Caller...
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