You might wanna read up on webservices a bit - that's what AXL is in the end. Very briefly and as a "consumer" of a webservice, you want to add the webservice description (wsdl) file to your programming environment which will create a bunch of stub classes in the programming language you're most familiar with so you can then use that language to access the webservice.

If you look at the IP Phone SDK you'll find a few ASP (with Javascript) samples that use AXL so that could be your starting point (I'm not sure there's a stub generator for javascript but then again I've never looked).

Of course you could also call java code though if you're not familiar with java, that might not be the best solution (imagine something going wrong and you need to figure otu what... it's much easier if you can debug everything up until to the connection to the server and won't have to deal with a black box that isn't even production ready code).