code: public void setPhoneNumberIds(java.util.Collection<String> phoneNumberIds) {
          if (phoneNumberIds == null) {
              this.phoneNumberIds = null;
              return;
          }
  
          this.phoneNumberIds = new java.util.ArrayList<String>(phoneNumberIds);
      }
docs: <p>
  List of phone number IDs.
  </p>
  
  @param phoneNumberIds
  List of phone number IDs.