Custom Telephony Adapter Creation

Hi all, I've had a few questions through from a partner who are looking to create their own telephony adapter. Can anyone help with the following?

Many thanks in advance

Will

(i) interestingly there seem to be (as of 7.5.1 apparently) 3 new api calls

     telephony-profile-info</action>
      telephony-profile-list</action>

      telephony-profile-update</action>
 
  ...which would mean that I can programatically  control providers: can you (or someone) confirm  thatt his is the case and also whether or not we can create providers on the fly (cos that would be cool)?
 
  (ii) Is there a point of reference for creating our own audio bridges like the intercall_adaptor for example. I have looked at these but wonder if there is an api available anywhere that we could look to build a custom solution (in java) on?

  (iii) (with ref to my earlier email)_  I assume that the custom pod available for ocs integration  (http://www.connectusers.com/forums/cucbb/viewtopic.php?id=2942) is  using the  http://msdn.microsoft.com/en-us/library/dd253291(office.13).aspx and is (as a result) unable to access voice, just presence and chat?