improve default freeswitch config

[mwolff44]

I can not use it like that, as you see there are excaped caracter at the end. But neeeds to be enhanced

[freddy36]

With or without the escaped dots it should result in the same logic. Network_addr will always have the format X.X.X.X for the standard setup so the escaped ANY regex matches must match the dots in the network_addr. I would prefer this slightly relaxed IP matching over having to introduce a second variable for the regex version of the IP.

[mwolff44]

have you tested it like that ? if it is ok, i merge it

[freddy36]

Yes it's working for me like this.

[mwolff44]

for me it is ok from security point of view, as it is easy and recommanded to setup a firewall on FS VMs.