which telecommunication carrier has changed there telephony system to VOIP?
149765
Everyone is moving toward VoIP (Voice over IP) but if you want it now, i suggest checking out vonage.com.  it's the largest VoIP provider.
1052101
VOIP is the best ever.  It hooks into your regular telephone so you can't tell a difference!  The only thing is when dialing you have to dial the area code (atleast for Vonage that's what I use).  When you get voicemails you can also opt to receive email notification which lets you listen to the message.  You pay no long distance to US and Canada (they have different plans too).  VOIP is definately not too new to consider.  As long as you have your high speed internet connection you have phone service and no long distance bill.
862257
A company with a call centre that isnt based in India? WOW!
681777
Yes. There are several. Skype has a deal until the end of the year where calls within the US is free. You can either buy something that will convert your phone to a VOIP phone, or buy a phone that is both internet ready and regular (I know skype sells it, you can probably get that locally too)
1170403
http://www.voipbuster.com\nyou'll see there all the info...\n\nvoip is voice over ip...
305701
Get Lingo or Vonage and use voip (Voice Over Internet Protocol) to make your calls over the internet.
981255
Arizona\n\nhttp://phoenix.about.com/od/empllarge/a/callcenter2005.htm
80125
Answer is CISCO . If you are looking for VOIP service at home. Lot of Cable company like comcast provides VOIP phone service . Also you can use Vonage for your Home as a VOIP Phone service provider . Voice quality is excellent.
421606
I have used Skype with some of my code to replace the long-haul with VoIP.\n\nI call into my own Skype with my cell phone, then after entering a password, I can dial an international number, and I do a "SkypeOut", or VoIP to a closest VoIP-to-PSTN gateway in the foreign country, which then is converted to PSTN.  Cost is usually less then $0.01 minute.\n\nCell --> My VoIP Gateway --> VoIP long Haul ---> Skype's VoIP Gateway --> PSTN\n\nIf this is a permanent solution you can establish your own VoIP long haul replacement, by putting a VoIP gateway at each permanent location, thereby not have to pay for Skype's VoIP Gateway.
2291
Yahoo is launching the VOIP service around March 2006. Yahoo’s Phone Out VoIP service will let users make calls from their PC to non-VoIP enabled traditional landlines and cell phones located in over 180 countries. Calls within the United States will cost $0.01 per minute. Calls to 30 other countries such as Australia, France, Germany and Japan will be priced at less than $0.02 per minute. Yahoo will also make prepaid call plans available, priced in increments of $10 and $25.\n\nThe Phone In VoIP service will let users receive calls from traditional landlines or cell phones on their PC and will be priced at $2.99 per month, or £29.90 per annum. Users subscribed to Yahoo Phone In will be able to choose a phone number in a different country so calls originating from the country will be charged at a local rate. Subscribers will also be able to select multiple phone numbers for use when traveling.\n\nThe Phone Out and Phone In VoIP services will be made easily accessible from a toolbar that will let the user send instant messages, send email and SMS, as well as make calls. A beta of both Yahoo VoIP services will be made available in Germany, Hong Kong, Italy, Singapore and Spain soon.
1098265
Both use TCP/IP protocol to deleiver data traffic between hosts and destinations, but VOIP use high proccessing equipments to digitally \nspeed  voice traffic through ip network. that what is help to decrease cost of internation call rate because call handelled over internet ip not through telcome wires network.
120298
http://www.voipstunt.com/en/index.html
605525
VoIP over MPLS NetworksVoIP News, Products, Training, Test Tools, Gateways, Switches.\nhttp://www.voip-news.com/art/2x.html - 22k -
272945
International Telephone and Telegraph
1047572
Could you please elaborate more? are you asking about how the GSM network operates? or are you asking about their IT infrastructure?
830152
Sorry, there is no website that you can do that... You will have to pay for calls to mobiles, although it is much cheaper than calling directly from your land line.\n\nWhat is free in VOIP generally is only calls to other computers...\n\nTry skype
131846
There are none.  You need a different service provider in each country.