Node will wait for all the ping replies and then displayed. For
example, if retryNum is 64 then result is displayed once all 64
results are received.
AT#WLANPING= "www.telit.com"
#WLANPING: 01,"81.201.117.177",6,50
#WLANPING: 02,"81.201.117.177",5,50
#WLANPING: 03,"81.201.117.177",6,50
#WLANPING: 04,"81.201.117.177",5,50
OK