streamsx.sttgateway toolkit v2.2.9

This release has a major design change to completely remove the second output stream from the IBMVoiceGatewaySource operator. This second output stream used to carry "End Of Call Signal (EOCS)" to indicate the end of a voice call. Due to port locking and out of order tuple processing possibilities among the two output streams under high call volume conditions, it was decided to have only one output stream to carry both the binary speech data and the EOCS messages. Please always use the tar.gz file that has version number, date, time, MD5 and sha1.

What's new: CHANGELOG.md