On 25/12/14 15:43, Joseph wrote: > I've installed "zoiper" (this is an softphone app to connect to my > Asterisk server) on my old phone and it works on my private network over > wifi. > I'm using standard IAX port 4569 to register, so this port is open on my > firewall. > > But when I catch an open public wifi network in a Mall or a Tim Horton > "zoiper" failed to register. > > Do they block outgoing ports of public WiFi networks? What are my > alternatives? > > I can open any port on my DD-Wrt and redirect it to my Asterisk server. >
Quite often happens in this part of the world. I run an openvpn ssl vpn on port 443 with an ssl multiplexor on the server end - route all the voip traffic through the vpn. Doesnt work well if bandwidth is really constrained but its the difference between having at least something or nothing at all. BillK