BT Voyager 220v as ethernet SIP client

Hi
Please forgive me if I say something stupid, I'm new here!

I've been playing with a BT Voyager 220v ADSL Voice Router and have got the Voice thing working fully with Plusnet VOIP.

The way I would like to use it, is with its ethernet socket plugged into my network without its ADSL being connected. ie as an ethernet SIP client.

On the Telnet interface I have done
voice set interface br0
But it won't connect. I've turned off its dhcp, set its IP to 192.168.1.254 and set DNS server to 192.168.1.1 which is my network router.
If I ping google.com, I get:
PING google.com (74.125.67.100): 32 data bytes
ping: sendto: Network is unreachable

I think the problem is that there is no route through my router until the 220v requests an IP address. But I can't think of a way for it to do this.

Any ideas?

Help appreciated
Tony

It sounds like you might need to add a default route to the unit's IP routing table, to tell it to send all traffic via 192.168.1.1.

Thanks. This is at the limit of my knowledge. I guess in telnet I would use the route command. What exactly do I type?

Much appreciated

Tony

That depends on what commands the BT box accepts. Sorry I don't know. For machines that use Linux you would use some kind of "route add" command, but many appliances have a web interface where you can change the routing table through the GUI configurator.

Why have you turned DHCP off? Since the device is now plugged into your router it should get its IP and the rest of the required information from the router. I guess you have already tried this?

DHCP on the 220V is a server handing out ip addresses. I want the 220V to stop thinking its a router and start thinking its just a SIP ATA!

I managed to add a default route using the web interface (thanks). Now "pings" work. But, the only way I could get the VOIP to connect was by replacing each sip.plus.net with its IP. Now I get dial tone but cannot connect. Incoming calls don't come through.

Any ideas?

If the names will not resolve then DNS is probably not working. Perhaps that can be set through the web interface too?

The alternative would be to get DHCP working (i.e. as a client rather than a server) so that the BT box requests an address from your router. The DHCP response contains not just the IP address but also the default gateway and DNS settings, i.e. everything the client might need.

That BT thing is and ADSL/Router/Voip device. Normally the ADSL part can be bypassed, however, with that device I don't know how. If you can do that then the router that you are using should provide all the require info via its DHCP server. Usually you can put it the address of the router and the DNS server (192.168.1.1).