Please refer to original defect for more details.
# : 1931266 , 1886605
When connecting to an SFCB provider using an HTTP M-POST wrapper
HTTP/1.1 501 Not Implemented
Client's are supposed to fall back to HTTP POST for the next 24 hrs. In practice client's including the SBLIM Java client go back to M-POST on the next new connection attempt to the device.
Supporting M-POST would significantly help performance of providers that receive lot's of requests