Archive for the 'Residential VoIP' Category

Video Surveillance, the Kapanga Way…

Sunday, September 16th, 2007 by Martin Cadirola

Next time you go on vacation you may want to consider Kapanga as a cheap, reliable and effective way to video-monitor your house (or office) activity. Some members of the Kapanga team use it to ensure the pet sitter is taking good care of your pets while you are out :>)

So how does Kapanga work as a video surveillance device? Here are the main requirements:

1. Multiple Kapanga Softphones are distributed in the area to be monitored.
2. Each Kapanga may be connected to multiple cameras.
3. Kapanga Softphones can talk to other Kapanga Softphones and access each other video feeds and control information.
4. Kapanga Softphone can detect motion, loud noises, temperature changes and other trigger actions/alarms.

While you are out, you can call home from your 3G phone and a Kapanga Softphone will automatically answer. After entering a Username and Password the Kapanga will give you access to the video feed of all the cameras. Your home-based Kapanga will also provide control and status information of all the detectors since your last call. Sounds like 007 stuff, eh?

Another cool thing you can do is to configure Kapanga to call you in case of any event triggered (for example an alarm triggered by an event). We used this setup at a NASA group during a scientific field campaign when an instrument needed on-site attention at random times. We configured Kapanga to call one of our engineers’ cellphone when attention was required. And voilá!

If you want to give this feature a try, please feel free to contact us at support [at] kapanga [dot] net.

See you at NXTComm Chicago!

Monday, June 18th, 2007 by Martin Cadirola

We’ve been extremely busy with new Kapanga developments so today I’ll be traveling to Chicago to attend the NXTComm trade show. Looks like it’ll be a lot of fun, considering that the IP telephony market has been growing. If you happen to be there and would like to meet me, please send me an email to martin [at] kapanga [dot] net.


Kapanga spricht Deutsch. Ja wohl!

Friday, April 13th, 2007 by Martin Cadirola

In our efforts to support multiple languages (we support English and Spanish), we’re happy to announce the addition of German language to both desktop and mobile versions of Kapanga Softphone. This great work has been done by our kind colleagues in Germany, the Research Group for Telecommunication Networks at the University of Applied Sciences in Frankfurt, Germany. This group works on the future of telecommunication networks with current main focuses on Quality of Service (QoS) and value added services in IP based Next Generation Networks (NGN). For further information please visit their web site.

So how can you do it? Very simple. Just follow this easy steps:

1. Click on the K icon on the upper left side of the phone

2. Select View, then Language and then Deutsch

3. Voilá, you’ve got Kapanga now working in German


PS: If you are a big fan of Kapanga and you are interested in translating it to other language, please send us an email to support at kapanga dot net and we’ll work with you on the details. Thanks!Kapanga Softphone adds German language

Introducing Kapanga Mobile Edition (Beta)!

Wednesday, December 13th, 2006 by Martin Cadirola

You may have noticed a few posts in our blog…and here’s the reason why: working very hard to release a public beta of Kapanga Softphone - Mobile Edition :>D . Kapanga Mobile has been in development for over a year and the good news is that it’s been tested with quite a number of large companies. All of us here at the Kapanga Team are strong believers in public feedback and already appreciate the kind words of encouragement. For those who have not seen the press release, click here; you can try the beta by completing the form here. Cheers!

How does an Internet Telephony Provider works?

Thursday, November 2nd, 2006 by Martin Cadirola

Since we are mostly interested about what happens on the endpoint side of the VoIP picture, we thought it would be interesting to summarize the components of an Internet Telephony Service Provider (ITSP). So here is a brief of list of main components:

- User Agent Client (a.k.a SIP client)
- Registrar Server (provides network access)
- SIP Proxy Server (routes calls)
- User Agent Media Gateway (converts VoIP calls to PSTN calls)
- PSTN access (T1 line connected to a CO (Phone Central Office)
- PSTN telephone (the good ol’ telephone)

When we start Kapanga (or any other UAC), it registers with the Registrar Server to gain access to the network. Thus, Kapanga will send a “SIP REGISTER” request with its credentials and the Registrar Server will validate and grant it access to the network. Once we place a call to a regular number (a.k.a. PSTN number in tech jargon) the call will traverse the network and eventually will get routed to a User Agent Media Gateway at the ITSP site.

The Media Gateway will take care of translating SIP calls to ISDN or SS7 format (and viceversa), routing calls back to the SIP Proxy Server as needed. The SIP Proxy Server will check its routing list to make sure the destination device is available (in this case Kapanga) and whether to forward the call to a Voice Mail system or to Kapanga itself. The media content (voice or video) will then traverse the IP network from the Gateway to Kapanga (the User Agent Client) directly without going through any SIP Proxy Server.

And voilá! That’s how it all works. Of course, if you are offering this as a service, you’ll want to add a billing server that keeps tracks of calls/minutes/rates. We’ll get to that in upcoming posts. Cheers!