[asterisk-users] Asterisk with Internet connectivity

[Klaus Darilion]

Hi!

I have a setup with Asterisk in front of a PBX connected with ISDN to 
the PSTN and to the PBX. This Asterisk (a old 1.2 instance) is doing 
ENUM for outgoing calls and allows incoming calls per SIP.

Recently the IP connectivity for this location was down the whole 
telephony was down too - not even incoming calls did work. This is 
really strange as incoming calls from PSTN are routed directly to the 
PBX without any IP needed, ISDN to ISDN.

Once the IP connectivity was reestablished everything worked fine again.

So I wonder what could be the reason that Asterisk blocked all the 
telephony.

thanks
klaus