code: function smsAddPhonesToBlacklist(callback, phones, comment){
      if ((phones === undefined) || (!phones.length)) {
          return callback(returnError("Empty phones"));
      }
      var data = {
          'phones': JSON.stringify(phones),
          'description': comment
      }
  
      sendRequest('sms/black_list', 'POST', data, true, callback);
  }
docs: Add phones to blacklist
  
  @param callback
  @param phones
  @param comment