Voip Sip
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VoIP ADSL Phone Can Reduce Cost Of Phone Calls
Do you remember the days when long distance phone calls were so expensive people set timers to keep from talking too long? Do you remember 1982 when the Internet was coming into its own, and someone came up with the idea to use the Internet for long distance calls. It worked back then, but with today's new technologies like high-speed ADSL links, Voice over Internet Protocol or VoIP has come into its own. Service providers are taking advantage of the technologies to give their customers great products like the VoIP ADSL phone that offers long distance service at a low cost.
VOIP worked back in the 80s and 90s, but since most of us were using modem connections that, at best, gave us a 57 Kilobits per second transmission speed (and monopolized our phone lines while they were at it), VoIP got a bad reputation as being too low quality.
VOIP today is a different beast. VoIP calls are no longer plagued by lost words. VoIP video conferencing runs smoothly. All made possible by high speed ADSL links.
It takes a lot of work to send voice across the Internet. A voice signal must be converted to a digital signal, then compressed so it does not take up too much space on the line, and then decompressed at its destination so it sounds like a voice again. It is no wonder that early VoIP users were frustrated. But with ADSL, those days are behind us; ADSL has the bandwidth and speed to seamlessly carry voice signals across land lines and the Internet.
Data communication engineers have also successfully improved quality of service by eliminating the lags and stops in voice and video conference calls and enhancing the quality of the sound. And their work continues. VoIP devices today use Session Initiation Protocol (SIP) to seamlessly manage calls across the Internet.
ADSL services are typically marketed in packages that offer ranges of speeds and prices. DSL packages range from a low of 128 to 3000 Kilobits per second (3 Mbps); ADSL extends the higher speed service to 8000 Kilobits per second (8 Mbps). The ranges of speeds and prices make it possible for Internet users from home offices to large businesses to subscribe to DSL services.
New and faster technologies mean new and faster products and services. Communications service providers offer a wide range of products. There are phones that take advantage of ADSLs ability to share the telephone line so that a device can be used as both VoIP and land line phone, a good combination that insures a line is always available for phone calls. There are many offerings and configuration of ADSL modems that have enhanced security and various options for connecting phones. Wireless phones and dedicated VoIP ADSL phones are also available. The promise is quality phone service at a lower price than traditional telephone service providers, and the service providers are delivering.
What do I need to share one internet connection to two separate networks?
I have a scenario where I have Verizon Fios and want to separate a VOIP (SIP) trunking network from my data network. Right now I am using one router (Linksys WTR610N) to handle both voice and data and think that one router is getting overworked. I have another identical router and 5 static public IP addresses, but what do I need to put between the WAN ports of the routers and my Fios internet feed? Would I use a switch or hub to break the one internet connection between the two routers?
You can't really split the internet connection but you can have 2 separate subnets by using both routers. Just make router #2 a client off router #1 (which connects the the FIOS modem). Connect the WAN port from router #2 to a LAN port of router #1. Make the LAN side of #2 different than #1 and make #1 the default gateway for #2.
Will this relieve the congestion on route r#1? That depends on how much traffic is local and how much goes out to the Internet. If it ALL goes to the Internet then probably not that much. I guess you'll cut down on ARP traffic and other background noise like that.
galaxy-nexus-sip (JK On The Run)
This week was all about money. I used Google Wallet to buy gas -- and got a
video demo -- found some 10-cent Android apps and worked out a way to get free
calls over a data network thanks to Android's SIP support for VoIP.
Explore Nexus S: Gingerbread VoIP
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