From the monthly archives: December 2010

Erlang for Christmas Shoppers: Why the other checkout line is faster than yours

by Andreas Granig on December 22, 2010 · No Comments">No Comments · in Uncategorized

The Erlang-B calculation is used in telephony systems to describe the probability of call loss on a group of circuits without call buffering. It is however not limited to telephone networks, since it describes a probability in a queuing system. Based on this concept, Bill Hammack from the University of Illinois explains why the other […]

VMware image for sip:provicerCE available

by Andreas Granig on December 16, 2010 · 1 Comment">1 Comment · in Announcements, News & Blog

Due to the great success of the VirtualBox image, we’ve created a VMware image of sip:providerCE for quick testing of our free product. Please check out the documentation regarding how to use sip:providerCE virtualization images.

Running sip:providerCE on Virtualbox in Windows

by Andreas Granig on December 14, 2010 · No Comments">No Comments · in Technical

The demand for testing the sip:providerCE on Virtualbox in Windows is actually bigger than expected, and there came up a couple of issues we’re currently working on: The default version when downloading Virtualbox is 3.2.12, which does not support the OVA format (which in fact is just a TAR of the OVF file together with […]

sip:providerCE – the first release of the open-source Class5 VoIP platform

by Andreas Granig on December 13, 2010 · 5 Comments">5 Comments · in Announcements

We at Sipwise are excited to announce the first public release of the sip:provider Community Edition (CE). It is a SIP based Class5 VoIP soft-switch, providing every component an operator needs to offer VoIP services. It comes as a communication platform leveraging the capabilities of Kamailio, SEMS and Asterisk, complemented by our own open-sourced building […]