VoIP at JQuantLib
From JQuantLib
JQuantLib has a telephony server intended to facilitate the way people communicate.
Now you have the option to call other contributors and talk on the phone without spending a cent.
How it works
SIP is the industry standard protocol intended to transfer audio and video via data communication channels. You can use any software or hardware compatible to SIP protocol and "talk on the phone" via Internet, for instance.
For the impatient (and for the poorman), the easiest and cheapest way to get started is download and configure a softphone. I recommend these:
If you are interested on a (hardware) phone, I recommend these:
How much does it cost?
- Phone calls cost absolutely nothing.
- Setting up an extension for your use in favour of JQuantLib is absolutely free;
- Softphones I recommended are absolutely free or have versions which are free, as far as I know.
- Hardware phones will obviously cost you some money, unless Santa Klaus exist.
How can I quickly start using it?
If you are not familiar with VoIP
You can opt for
- becoming a member of JQuantLib's VoIP provider, which is intended for internal use by JQuantLib contributors.
- becoming a member of some VoIP provider. See an incomplete list at http://www.voip-info.org/wiki/view/VOIP+Service+Providers
If you are already familiar with VoIP
If you already have your VoIP provider, I'd recommend you try these steps explained below first.
They are not guaranteed to work, but it pays off a try, anyway.
There are various ways to call me directly:
- international number via ENUM: +882(99)008083-2200
- geographical number via ENUM: +44(20)8555-7030
- web page via SipBroker: http://www.sipbroker.com/sipbroker/action/callIn?memberOID=326519
- via SipBroker: *9686 2200
- directly: 2200@jquantlib.org
Configuration steps
These configuration steps are intended for those willing to become members of JQuantLib's VoIP provider. The service does not cost you anything but it is restricted to JQuantLib contributors, i.e: this is another communication media available to contributors, besides the mailing list and IRC channel.
The are the steps:
- Do not buy anything. Start using a free softphone;
- Send me an email asking the configuration parameters.
- I will create an extension number for you in our telephony server.
- I will send you the configuration parameters and some easy steps;
- Configure your softphone as explained in my response to your email.
- Dial 103 for an echo test. You should be able to listen your own voice.
Making phone calls
After you have configured and tested your phone.
- Dial 2200 and you will talk to me.
Troubleshooting
These are some situations when things go wrong:
- Some old routers do not work reliably. Try to find in the internet articles reporting problems with the make/model you have. Depending on the make/model, you can find an up-to-date firmware which fixes the problem.
- Several low end, cheap routers do not work reliably. The first problem you will face is identify what's the make of it. If you find an FCC ID somewhere, you can try to find information about the make in the FCC search page. If you find the make, you can try to find their website. You will be lucky if you find a support page in their website... if they have one.
- Several routers provided free by telephony companies are tied to their telephony servers. You are not able to configure the parameters you need to connect to our telephony server or they will "collide" with your softphone or hardware phone installed in your LAN. There are reports in the Internet about how to hack several routers.
These are some steps I recommend to solve problems:
- Do not buy anything before doing tests with a free softphone;
- Make sure you have configured properly your softphone;
- If you are behind a firewall/NAT, make sure you have configured 2 Public STUN Servers from the list you can find here
- Contact me and I will help identify what the problem is.
References
Richard Gomes 13:16, 19 October 2009 (UTC)
