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Will interoperability problems give IP telephony a busy signal?

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1 Author(s)

Internet telephony is attractive to customers because it uses lower-cost equipment and is less expensive to operate than traditional, circuit-switched telephony, thereby enabling carriers to charge lower rates. However, there are technical obstacles that could significantly impede the technology's marketplace growth. Providers' incompatible IP-telephony implementations make it difficult and expensive to move Internet calls between different carriers' networks. And as more calls shift to the Internet, these handoffs will grow in volume and complexity, further complicating the problem. Researchers are thus working on ways to enhance interoperability.

Published in:

Computer  (Volume:37 ,  Issue: 3 )

Date of Publication:

Mar 2004

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