The first step is to find out what IP Address your adapter is currently using. To do this, pick a phone connected on Line 1 and do the following:
Dial: **** (That is 4 asterisks)
Once this is done, dial: 110# (110 followed by a square)
The system should now playback the IP Address your device has been assigned.
Note: Some versions of Cisco IP 'phone (typically multi-line devices from the SPA30x and SPA50x series) provide a [setup] key (icon is one piece of paper with one corner folded). On these models, pressing [setup] then selecting 'Network' from the menu provides its IP without dialing any codes.
Using your favorite web browser from a computer on the same network, point the address to the IP address of your adapter.
(example http://192.168.1.2) Replace 192.168.1.2 by the IP Address your device is currently using.
You should now see the web interface of your Linksys/Sipura.
click on the link "Admin", and once the page has reloaded, click again on the link "Advanced View".
Under the LINE 1 Tab, Find the following fields and fill them with the following information
Nat Keep Alive: Yes
Nat Mapping/Traversal: Yes
Proxy: xxxx.dgnetrix.com (xxxx is listed in your dashboard endpoint page)
Register Expires: 300
Proxy Fallback Intvl: 300
Display Name: John Smith (Replace with your name or company name)
User ID: 100000 (Replace with your SEP number)
Password: ******** (Type in SEP account password)
Use DNS SRV: NO
DNS SRV Auto Prefix: NO
(On multi-line 'phones like the SPA30x/50x this tab is labelled 'Ext1', 'Ext2', 'Ext3'. The initial defaults assign all individual line keys to 'Ext1' settings. Labels are specified on the 'Phone' tab)
Click on the "Save Settings " button at the bottom of the form. The IP 'phone may take up to 35 seconds to re-initialise.