[Serusers] need help badly!!!

[Ronald Ramos]

Hi All,

I cannot call to PSTN, previously I can, so I ask our gateway provider, they 
are saying nothing's wrong on their network.

I'm noticing this on my logs

"SIP/2.0 500 I'm terribly sorry, server error occured (2/TM)"  it says out of 
memory, what memory is it? I'm looking on my memory usage it's at 0.01%.

also i'm only noticing this on some extensions only, on the others i don't 
see it.

could it be that these problems are the cause why I can't dial to PSTN? But I 
can still make phone calls when I call local extensions which means my ser is 
working.

How can I contest this to my gateway provider? Hope anyone can help me. Thanks