Retrieve version information for the API system.
https://<PABX HOST>/servicemanager/rest/CallManagementAPI/version
This call takes only the timestamp and hash as parameters. No additional parameters are required.
A sample response:
{"ServiceManagerVersion":"3.6.0.16",
"CallManagementAPIVersion":"1.3.0.0",
"AsteriskVersion":"Asterisk 1.4.44-8~ppa6~precise0 built by pbuilder @ build0 on a x86_64 running Linux on 2014-08-06 08:13:12 UTC"}