Hi Tabt, It occurs to me what you're trying to figure out is: should you be writing a B2BUA or a SIP proxy? It should not matter how many of each exist in the world, what should matter is what YOU are trying to accomplish.
If you're trying to write something that simply locates SIP users to establish calls, then all you need is a SIP proxy and maybe a SIP registrar to locate your own users. If you want something more complex that works more like a standard telephone switch or more accurately a local exchange switch, class 5, ect, then you'd want a B2BUA somewhere in the mix. This is because a local switch can provide many different local features and make use of many different signaling protocols. A B2BUA can accomplish these things all from the same program/system, but not a proxy. Since a B2BUA has more functionality it is also much more complex. More complex systems also tend to have increased latency. In the end you really need to figure out what you are trying to accomplish before choosing to write one or the other. As others pointed out there is really no answer to your question, but I hope this will provide some sort of an answer to a question you maybe meant to ask instead. Brandon On 07/28/2011 06:21 AM, Couret Tabt wrote: > Hi, folks, > > I want to know that > how many SIP systems adopt 'B2BUA'. > > 'Most system' or 'Few System', etc... > > For example, > how many SIP systems, using B2BUA, that you have taken part in > are there? > > I am happy if you let me know that. > > Thanks in advance, > Tabt, > _______________________________________________ > Sip-implementors mailing list > [email protected] > https://lists.cs.columbia.edu/cucslists/listinfo/sip-implementors > _______________________________________________ Sip-implementors mailing list [email protected] https://lists.cs.columbia.edu/cucslists/listinfo/sip-implementors
