Yenra : VoIP : Voice over IP : Making voice calls over the Internet rather than the Public Switched Telephone Network

Voice over IP

Qwest today announced the first of a phased deployment of voice over Internet protocol (VoIP) services to customers in Minneapolis-St. Paul, Minnesota. Qwest is the first major telecommunications provider to offer Voice over IP services to residential customers.

Qwest's unique blend of local and long-haul network assets make VoIP a natural evolution because the company can offer the "last mile" broadband connection to customers' homes through DSL and then transport the long-haul traffic onto its nationwide data and IP network.

With VoIP, customers can enjoy new features and:

The above features are in addition to the standard telephone features customers have enjoyed in the past with traditional telephony service.

How Voice over IP Works

Voice over IP gives customers the ability to use a high-speed data connection to make voice calls to others over the Internet or a private network rather than over the Public Switched Telephone Network.

Following is a description of the Voice over IP call process:

  1. Calls are made using a VoIP phone or a wireline phone that is connected to a VoIP adaptor device
  2. The VoIP phone or VoIP adaptor is connected to a DSL or cable modem at the customer's home
  3. For transmission, the conversation is broken down into smaller units called packets which are sent across the Internet
  4. The Qwest VoIP network provides the features selected by the customer (such as call forwarding) and routes the call appropriately
  5. At the receiving end, the packets are reassembled in the appropriate order and converted back to an analog signal