A description for the Genesys GETS SIP/CSTA gateway can be found here: http://www.genesyslab.com/products/enterprise_collaboration.asp
ECMA-269 information can be found at this site: http://www.ecma-international.org/publications/standards/Ecma-269.htm
ECMA-323 information can be found at this site: http://www.ecma-international.org/publications/standards/Ecma-323.htm
ECMA TR/87 information can be found at this site: http://www.ecma-international.org/publications/techreports/E-TR-087.htm
18.188.43.246