换号 meaning in English

change signs

In the performance of contracts discussed in this paper , distinct treatments shall be ensured towards mobile telecom service providers ’ blacklist measure and associated suspense of service measure , aimed at the users ’ change of number so as to evade payment , for their different legal characters
移动电信服务合同履行过程中用户的“逃费换号”行为实质是“以合法形式掩盖非法目的” ,经营者针对该行为采取的“黑名单”措施符合法律的规定,但是不属于行使不安抗辩权的行为。