VoIP Cookbook: Configure Linksys SPA9000 to talk to Linksys SPA400

The Line 4 tab of SPA400

To have SPA9000 capable of communicating with SPA400, you need to register the user ID you have set in SPA9000 to SPA400. Go to admin menu, choose Advanced and choose one of the four lines. Under the Subscriber Information, you need to set the following parameters:

Display Name - according to SPA400.
Display Name – according to SPA400
User ID – according to SPA400
Password – just leave it blank
User Auth ID – should be No
Proxy – SPA400 IP address 
Outbound Proxy – SPA400 IP address 

See Also

• VoIP Cookbook: Building your own Telecommunication Infrastructure
• VoIP Cookbook: Analog Telephone Adapter for connection to PSTN