Bleh, this is just a press release, and a poor one at that. The thing reads like a telecom buzzword-bingo exercise. In the first paragraph alone:<p>* strengthen the position in the market<p>* consolidate the development of their unified communication solutions<p>* SIP routing development process<p>* highly available communication systems<p>* carrier grade communications platforms<p>* solid base for further growth and adoption of new technologies<p>None of this tells me anything about the service offering. What products are you offering? How do they integrate in to legacy environments? What exactly are we talking here? Outbound termination? Analog trunk replacement? Bundled VoIP with IAD for legacy integration? Just another SIP carrier?<p>What really bugs me about this is the use of "Open Source Software" in the submission title. Yes, Sipwise has an open source "community edition", but it's just another example of a hybrid open/commercial software offering.<p>If you want a fully open source product, have a look at OpenSIPS: <a href="http://www.opensips.org/" rel="nofollow">http://www.opensips.org/</a>. I'm not directly affiliated with their project, but I've worked with a local SIP carrier out of Cleveland that uses their product in their core SIP infrastructure. It's open source from top to bottom. There is no upgrade path that involves you writing them a big check, and their software works fantastic.