With a new API and a number of new SDKs in the works, the Esendex development team have a new 'Beta-Zone' in our web site's developer section. The Beta-Zone will be an area for new projects and concepts that aren't fully finalised yet, but offer exciting new functionality that can be made use of by our customers. Currently, we have details on consuming the new ReST API and PHP SDK; both these offer the brilliant new Voice SMS functionality you've been keen to work with programmatically. We will also disclose details of future releases in the works too (new .Net, Ruby and Perl SDKs).
As with anything new we offer to our customers, we are keen to hear all feedback and suggestions - don't be shy, let us know what you think!
Enjoy.