A set_feature_block request allows the user to add a new entry to the blocklist of incoming phone numbers currently blocked by the system. The information returned using a get_feature_blocklist method request can be used to help with a set_feature_block request.
||The user's login name
||The user's login password
||the id number of an entry on the blocklist (use "0" if this is a new entry)
||caller number (source number) to be blocked
||comment to be associated with this blocklist (optional)