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SOTAs: The Telephony Code: Page 3 of 12

Our Take — How's this all going to play out? We suggest a picture of what to expect from the SOTA marketplace.

While SOTAs may revolutionize businesses applications there's also plenty of hype. Vendors are promising capabili-ties that aren't yet available. Read on as we explore the facts and hype of this new technology.

Dave Greenfield

Editor, NetworkingPipeline

Well over a dozen computer-telephony APIs are commonly used in the industry to-day, although they're usually tied to specific platforms or computing models. In broad terms, these interfaces can be broken down into the following four basic categories:

Local APIs: These interfaces allow an application running on a computer system to communicate with local telephony devices and services through a local connection. Some common interfaces in this space are Microsoft's Telephony API (TAPI) for Windows, the Novell/Lucent cross-platform Telephony Server API (TSAPI) for networked applications, and the Java Telephony API (JTAPI) for Java-based apps. European Computer Manufacturers Association's (ECMA's) CSTA (computer-supported telephony applications) is widely used by telephony equipment providers and third-party software developers and generally falls into the local API category. Another legacy interface is the Simplified Message Desk Interface (SMDI), which defines a serial-line protocol for phone systems to use when communicating with voice-mail systems.