Sawtooth Software has its own CAPI capabilities.
Just a slice of history ...
MicroTab / Surveycraft started in Australia in the 80's. It was a DOS based software product that handled CADE (Computer Aided Data Entry), CATI and CAPI and it also had a powerful sample management system.
In the late 90's, SPSS purchased Surveycraft and other competitor products. From these purchases, a new Windows based software product was eventually released. I recall the name changing a few times. At one time it was called Vision 2000. Along came web surveying and the Dimensions name was introduced to the software - SPSS Dimensions.
Since then, IBM purchased SPSS and I believe it all falls under the IBM SPSS Data Collection suite.
Here is some basic information about Dimensions here ...
I know Dimensions has many import / export capabilities.
Best you look up IBM SPSS Data Collection. This will guide you to more Dimensions information.
Hope that helps in some way.