[asterisk-biz] Channels Go blocked for hight traffic

[Javier Santos]

Good Morning,

I have installed Asterisk in a Server with a Digium Card of 4 E1s
(T4XXP PCI Card). When i have a slow traffic (generally less than 30
simultaneous calls), i don't have problems.
But when i have hight traffic (more than 30 calls) the channels start
to go blocked. And ther are ghost calls. And the service go down.

I only have calls from the PSTN, no other calls.

The asterisk is conected to a Lucent 5ess.
Can you help me please.

thanks
best regards.