[LINK] Linkers using Asterisk

[Richard Chirgwin]

Can any of the Asterisk-using Linkers answer this?

I am using Asterisk with four PSTN lines and some VoIP services over the 
Internet, and some IP phones in the office.

The problem is this: if something goes wrong with the Internet 
connection, I lose the whole system - Asterisk gets upset at not being 
able to register with its VoIP services, and doesn't work properly with 
the PSTN line cards either.

Any suggestions?

RC