An integer value that sets the compression level for compressing the body of a message sent to and from the AppServer. The highest supported value for compression is 9. The valid range for compression is 1-9. If a value is set beyond the range, then, the value that is closest to the range is used. If a value greater than 9 or less than 1 is used, then, the compression level is set to 9 or 1 respectively. The higher the level of compression, the more time it takes to compress a message. Higher compression level results in smaller messages.