Can a home gateway, router, NAT or firewall be used with the FonecaVoIP service?
Yes. However, the firewall needs to be able to act as a SIP application gateway. This is not a common function of most firewalls. An alternative is to have the IP phone or adapter sit between the broadband connection and the firewall. They will share the public address of the firewall. All non-VoIP packets received from the WAN will automatically be forwarded to the firewall.
