Can I use a home gateway, router, NAT, or firewall with my Endlesscalls™ service?
Yes. However, the firewall must be able to act as a SIP application gateway. This is not a common function of most firewalls. An alternative is to install the IP phone or Endlesscalls™ Phone Adaptor between the broadband connection and the firewall. They will then share the public address of the firewall. In this configuration, all non-VoIP packets received from the WAN are automatically forwarded to the firewall.