Operating a VoIP system with a focus on great customer experience can be quite challenging, especially if you run a heterogeneous network with lots of different SIP clients (like various software clients, all kinds of SIP Phones and Terminal Adapters and especially IP PBXs). SIP clients are known to have all kinds of quirks and…
Only 4 months after the last release of version 2.4, I am excited to announce sip:providerCE v2.5! What’s the sip:provider platform? The Sipwise sip:provider platform is a highly versatile open source based VoIP soft-switch for ISPs and ITSPs to serve large numbers of SIP subscribers. It leverages existing building blocks like Kamailio, Sems and Asterisk…
This blog post is the first part of a series of posts, which describe how VoIP works and how the Sipwise sip:provider Platform enables you to start various VoIP business models. Part 1, which is provided in this post, gives you an introduction in how VoIP works. Part 2 shows how you can set up…
We’re thrilled to announce that we’ve raised a Series A financing round from Tecnet Equity and Speedinvest! This investment with an amount >USD 1M will allow us to grow much faster than in the past, and heavily expand our business in the US, as well as expand our existing business in the EU. Who are…
12 months after the initial release of version 2.1 and 7 months after release of version 2.2, I am happy to announce sip:providerCE v2.4! This is mainly a feature-release, no fundamental architectural changes have been made. What’s new in v2.4? Here is an overview of the most important changes since v2.2: Security SIP over TLS…
It’s been 3 weeks since sip:providerCE v2.2-rc1 came out, and today we’re proud to release the final version of sip:providerCE v2.2! What’s new? For the list of fundamental changes since v2.1, please read the v2.2-rc1 announcement linked above. Since v2.2-rc1, we only fixed bugs and improved the general handling of the SPCE: Sponsored development of…
Musings of a telco vendor about the cloud thing Over the last days, I was working on deploying and testing our open-source VoIP soft-switch SPCE v2.2-rc1 on an Amazon EC2 instance in order to provide a ready-to-run AMI for our community. Coincidently, I came across this tweet from @martingeddes: When you hear a vendor selling…
After over 4 months of development, we proudly present you the official Release Candidate 1 of sip:providerCE v2.2! Based on the feedback from our awesome Community and Customers, and aligned to our long-term Road Map, we’ve implemented some fundamental changes into v2.2 compared to v2.1, and we bring you some desired new features. What’s new…
You want to meet us at Linuxtag 2011, Europe’s most important convention for Open Source Software, taking place from May 11 to May 13 2011 in Berlin? Andreas Granig, CTO of Sipwise, will present the sip:providerCE v2.2 in Hall 7.2b at the Kamailio booth 112 (near to the Mozilla project) on Thursday and Friday. You…
Using Tropo, it’s incredibly easy to add voice applications to your sip:provider CE (SPCE) or PRO system. Let’s assume that we have an SPCE installation serving a subscriber sip:test@sipwise.com, which is mapped to the phone number +4312345. By either calling +4312345 from your mobile or fixed line or calling sip:test@sipwise.com from a SIP client, you’d…