[[:internet_ru|{{ :vlajka-RU3.png|}}]] 
[[:internet|{{ :vlajka-CZ3.png|}}]]
[[:internet_en|{{ :vlajka-EN2.png|}}]]
======  The call is intermittent when calling from the internet  ======

1. Check your internet connection quality - instructions below.

2. Check if the call is also intermittend when you are calling to the Czech Republic

====== Has my internet connection sufficient quality? ======

Run **[[http://www.odorik.cz/images/ping.bat|batch file]]** to test your internet quality or follow the instructions below:

CLick to button **Start -> Run ...**, write **cmd** in open window **cmd** and press **OK**. Write the command below:
<code bash>
ping www.odorik.cz -t
</code>
and press ENTER. Let the command work for a while. You stop the command by pressing Ctrl+C. 
The result should look like below:
<code>
C:\WINDOWS\system32>ping www.odorik.cz -t 
Command PING to www.odorik.cz [89.185.255.62] s délkou 32 bajtů
Odpověď od 89.185.255.62: bajty=32 čas=30ms TTL=57
Odpověď od 89.185.255.62: bajty=32 čas=36ms TTL=57
Odpověď od 89.185.255.62: bajty=32 čas=35ms TTL=57
Odpověď od 89.185.255.62: bajty=32 čas=33ms TTL=57
Odpověď od 89.185.255.62: bajty=32 čas=32ms TTL=57
Statistika ping pro 89.185.255.62:
Pakety: Odeslané = 6, Přijaté = 6, Ztracené = 0 (ztráta 0%),
Přibližná doba do přijetí odezvy v milisekundách:
    Minimum = 30ms, Maximum = 36ms, Průměr = 33ms
</code>
The most important for you is the information "**čas=XXms**" in each line, or lines, where is writen "Request timed out" (Vypršel časový limit žádosti) - it indicates the packet loss. It is important to have less than 5% packet loss. Time (čas) should not exceed 100ms and should be with the minimum dispersion (there should be no big difference between values). 

**Usual values are 0% packet loss and time between 10 and 40ms with low dispersion** - Internet with excellent characteristics suitable for calling. \\ Unacceptable connection is with a large packet loss (over 5%), or if the packets delay is larger than 300 ms.

:!: ** It does not depend on your internet speed but on your internet quality! **  \\
:!: The internet quality may change frequently during the day. Check your internet connection just when you encounter intermittent call or another problems with call quality.\\