What is the protocol PTP profile to be used to synchronize the IPT to IPA for EHX v11 and EHX v12 and what are the differences?


The differences between the two profiles are listed in the latest AOIP recommendation document  https://clear-com.atlassian.net/wiki/spaces/SF/pages/220823603

See page 13 section 3.3.3.  

At EHX V11.1 by Default Clear-Com uses the AES67 Media Profile. 

  At EHX V12 you can select to use the AES67 Media Profile or the ST2110 ( == SMPTE 2059-2) Profile.