Will the lawyer's letter be linked by SMS?

You can't. Formal lawyers' letters are usually sent by EMS, not by SMS.

Legal basis:

Article 28 of the Lawyers Law of People's Republic of China (PRC) A lawyer may engage in the following businesses: (1) Accepting the entrustment of a natural person, legal person or other organization to act as a legal adviser; (two) to accept the entrustment of the parties in civil cases and administrative cases, to act as agents and to participate in litigation; (3) Accepting the entrustment of criminal suspects and defendants in criminal cases or legal aid agencies to act as defenders according to law, accepting the entrustment of private prosecutors in private prosecution cases, victims in public prosecution cases or their close relatives to participate in litigation as agents; (four) to accept the entrustment and represent the complaints of various litigation cases; Accept the entrustment and participate in mediation and arbitration activities; (6) Accepting the entrustment to provide non-litigation legal services; (seven) to answer legal questions and write litigation documents and other documents related to legal affairs.