Telephony on DSL


Telephony on DSL or Voice over Digital Subscriber Line or VoDSL is a technique that sends both telephony and Internet traffic via a DSL connection.

VoDSL should not be confused with VoIP. Where VoIP operates a telephone service over the Internet (ie using IP), VoDSL runs the traditional telephony service over the same ADSL connection. VoDSL is also not the same as line sharing, a technique that converts ADSL and traditional telephony through splitters.

A provider can offer VoDSL if ATM is used in the backbone. In the most commonly used configuration, data is transferred to the ISP over that ATM backbone. In addition to the internet circuit, VoDSL also configures a telephone network. Both circuits function completely apart and can not affect each other.

VoDSL versus VoIP

VoIP converts speech into Internet traffic, and the pressure on the Internet is applicable to the quality of the connection, which in practice was once more disturbed / unreliable. Today, VoIP technology has been developed so far, and Internet connections are so stable that VoIP connections are often better than traditional phone connections.

VoDSL gives the benefits of internet telephony without the disadvantages. One can choose from multiple providers and thereby have access to cheap rates and subscriptions. At the same time, you are guaranteed a good call quality and the reliability (the chance of a successful connection) is greater than with VoIP.

In contrast to VoIP, VoDSL is compatible with ISDN. It is possible to place an ISDN service over the ADSL connection instead of an analogue telephone service, allowing the caller to enjoy all the benefits of an ISDN connection.

VoDSL is less popular than VoIP and therefore more difficult to obtain. The links

VoDSL consists of the following links: VoDSL in the Netherlands

In the Netherlands, VoDSL is provided by several internet providers on the ADSL network of bbned. Externe link

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