性能优秀的SIP Proxy

				CREATE TABLE speed_dial (				  username varchar(64) NOT NULL default '',				  domain varchar(128) NOT NULL default '',				  sd_username varchar(64) NOT NULL default '',				  sd_domain varchar(128) NOT NULL default '',				  new_uri varchar(192) NOT NULL default '',				  description varchar(64) NOT NULL default '',				  PRIMARY KEY (username, domain, sd_domain, sd_username)				);