Comments on: I would like to educate myself about VOIP where to start? http://www.digitalrecordersreview.com/blog/voip/i-would-like-to-educate-myself-about-voip-where-to-start Learn about the latest gadgets... Thu, 17 May 2012 08:12:40 +0000 http://wordpress.org/?v=2.5.1 By: Facepeer http://www.digitalrecordersreview.com/blog/voip/i-would-like-to-educate-myself-about-voip-where-to-start#comment-51 Facepeer Tue, 20 Jan 2009 07:31:59 +0000 http://www.digitalrecordersreview.com/blog/voip/i-would-like-to-educate-myself-about-voip-where-to-start#comment-51 First of all get an introduction about VOIP. learn about TCP/IP networking from a forum likes http://www.networktalks.com. Then you can start Asteriks PBX system.<br><b>References : </b><br>http://www.networktalks.com First of all get an introduction about VOIP. learn about TCP/IP networking from a forum likes http://www.networktalks.com.
Then you can start Asteriks PBX system.
References :
http://www.networktalks.com

]]> By: Mr. VoIP http://www.digitalrecordersreview.com/blog/voip/i-would-like-to-educate-myself-about-voip-where-to-start#comment-50 Mr. VoIP Tue, 20 Jan 2009 07:06:59 +0000 http://www.digitalrecordersreview.com/blog/voip/i-would-like-to-educate-myself-about-voip-where-to-start#comment-50 - Be famaliar with the most commonly used Codecs, like G.711u/a, PCMU/PCMA, G.729a, GSM, etc. - Something about the 3 primary protocols: SIP, H323, IAX. - SIP is becomming dominant for stand-alone services and Windows based IP-PBX. - IAX is dominant among IP-PBX Asterisk based services. - Importance of QOS with VoIP. - Importance of Latency, delayed and dropped packets and related issues that affect voice qualiy. - Router issues for Port Forwarding and Triggering of SIP ports 5060-5070 and RTP ports 10,000-20,000, etc. - NAT traversal issues and usage of STUN Servers. - Know how to configure your own user configurable ATA's and Softphones I'm self-taught just by doing extensive research over the Internet. I've tested using many different VoIP services. I downloaded user configurable softphones like the X-Lite, SJPhone, NCH Express Talk softphone, and 3CX VoIP Client from 3CX corp. My favorite to use is the 3CX VoIP Client Softphone. 3CX also has a free down-loadable Windows based IP-PBX for learning about using IP-PBX systems. I learned to configure my own Linksys PAP2T-NA and SPA2102-NA VoIP ATA adapters. I recommend the SPA2102-NA because it has built-in router and QOS. Learn to configure these devices with BYOD VoIP services like InPhonex, les.net, and CallCentric. Currently, my preferred provider is CallCentric. I use them on my ATA's and Softphones. The above should at least give you a starting point...<br><b>References : </b><br>http://www.cqvoip.info - Be famaliar with the most commonly used Codecs, like G.711u/a, PCMU/PCMA, G.729a, GSM, etc.
- Something about the 3 primary protocols: SIP, H323, IAX.
- SIP is becomming dominant for stand-alone services and Windows based IP-PBX.
- IAX is dominant among IP-PBX Asterisk based services.
- Importance of QOS with VoIP.
- Importance of Latency, delayed and dropped packets and related issues that affect voice qualiy.
- Router issues for Port Forwarding and Triggering of SIP ports 5060-5070 and RTP ports 10,000-20,000, etc.
- NAT traversal issues and usage of STUN Servers.
- Know how to configure your own user configurable ATA's and Softphones

I'm self-taught just by doing extensive research over the Internet.
I've tested using many different VoIP services.

I downloaded user configurable softphones like the X-Lite, SJPhone, NCH Express Talk softphone, and 3CX VoIP Client from 3CX corp.
My favorite to use is the 3CX VoIP Client Softphone.

3CX also has a free down-loadable Windows based IP-PBX for learning about using IP-PBX systems.

I learned to configure my own Linksys PAP2T-NA and SPA2102-NA VoIP ATA adapters. I recommend the SPA2102-NA because it has built-in router and QOS.

Learn to configure these devices with BYOD VoIP services like InPhonex, les.net, and CallCentric. Currently, my preferred provider is CallCentric. I use them on my ATA's and Softphones.

The above should at least give you a starting point…
References :
http://www.cqvoip.info

]]> By: sirdice http://www.digitalrecordersreview.com/blog/voip/i-would-like-to-educate-myself-about-voip-where-to-start#comment-49 sirdice Tue, 20 Jan 2009 06:21:59 +0000 http://www.digitalrecordersreview.com/blog/voip/i-would-like-to-educate-myself-about-voip-where-to-start#comment-49 Play a bit with Asterisk. It's a VoIP pbx (and much more).<br><b>References : </b><br>http://www.asterisknow.org/ Play a bit with Asterisk. It’s a VoIP pbx (and much more).
References :
http://www.asterisknow.org/

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