Does anybody know if the Gigaset N300 IP is capable of connecting to Asterisk and providing SIP to fixed PSTN line routing? I am trying to run this setup with little success so I suspect not. I can register the Gigaset to Asterisk and make internal calls between Gigaset DECT phones and Asterisk reigistered phones, but not make outgoing calls via the Asterisk.
Calls get routed to the Asterisk fine but I get a SIP 404 not found response, which makes me wonder if the N300 can actually do this.
I imagine I need to be using an FXS/FXO gateway device such as the Cisco SPA3102,