Zabbix alert send after week end

[mulbzh]

Hello and sorry for my English,

I use Zabbix email alert, it works like a charm.

And i also use SMS alert with one script. The script works very well but i have one trouble.

I configured zabbix to send SMS alert with this configuration :
Time period:6-7,00:00-24:00
and
Severity : high
and
Group : all except NAS
In action : send immetialy


When i have alerts the Week end, i receive emails alert but i didn't receive SMS alert. But i receive all alerts in monday at 8:00 in one shot

I don't understand why i didn't receive SMS the Week, why Zabbix Don't send alert the Week end and only the monday ????

Thanks for help

[mulbzh]

i found my problem : because Zabbix send too many SMS in same time, plateform SMS refuse to send SMS