code: public OvhTask billingAccount_line_serviceName_calls_id_eavesdrop_POST(String billingAccount, String serviceName, Long id, String number) throws IOException {
  		String qPath = "/telephony/{billingAccount}/line/{serviceName}/calls/{id}/eavesdrop";
  		StringBuilder sb = path(qPath, billingAccount, serviceName, id);
  		HashMap<String, Object>o = new HashMap<String, Object>();
  		addBody(o, "number", number);
  		String resp = exec(qPath, "POST", sb.toString(), o);
  		return convertTo(resp, OvhTask.class);
  	}
docs: Eavesdrop on a call
  
  REST: POST /telephony/{billingAccount}/line/{serviceName}/calls/{id}/eavesdrop
  @param number [required] Phone number that will be called and bridged in the communication
  @param billingAccount [required] The name of your billingAccount
  @param serviceName [required]
  @param id [required] Id of the object