- (NSNumber *)maxServerResultCount {
    return @(200);
}

- (void)updateCallRecordsInternal
{
    LogMethodName();
    self.regetHistoryRequired = NO;
    self.updatingHistoryNow = YES;

    [self fireWsMethodRequested];

    NSNumber *minMasterId = self.maxMasterId;
    [self.webService fetchRecentActivityWithTypes:@"VOICE"
                                      minMasterID:minMasterId
                                         quantity:self.maxServerResultCount
                       compressRecentActivityList:YES
                                       completion:^(WSMethodCompletionStatus completionStatus, id result)
     {
         @synchronized (self) {
             self.updatingHistoryNow = NO;
         }

         if (completionStatus == WSMethodCompletionStatusOk) {

             WSFetchRecentActivityResult *recentActivityResult = result;

             NSLog(@"---> Server Records count: %d", recentActivityResult.recentActivity.count);
             NSLog(@"-->Last record:\n -->%@", recentActivityResult.recentActivity.lastObject);

             [self addAllRecentActivityRecords:recentActivityResult.recentActivity];

             //Continue to loading records until count of received records
             //lower than max server records count per one request
             WSServerRecentActivityRecord *lastRecord = recentActivityResult.recentActivity.lastObject;

             if (recentActivityResult.recentActivity.count == self.maxServerResultCount.unsignedLongLongValue && lastRecord) {
                 self.prevMinMasterId = lastRecord.masterId;
                 [self updateCallRecordsInternal];
             } else {
                 [self fireWsMethodReceived];
             }

//             if (recentActivityResult.recentActivity.count > 0) {
//                 NSNumber *maxMasterId = self.maxMasterId;
//                 if (![maxMasterId isEqualToNumber:@(0)]) {
//                     self.prevMinMasterId = self.maxMasterId;
//                 }
//             }
         }
         else if (completionStatus == WSMethodCompletionStatusCanceled) {
             NSAssert(NO, @"WSMethodCompletionStatusCanceled");
             // do nothing
         }
         else {
             NSAssert(NO, @"couldn't retrieve recent activity records");

             LogError(@"couldn't retrieve recent activity records: '%@'", ((NSException *)result).reason);
         }

     }];
}