From http://gandhi.wordpress.com/2007/07/19/configuring-2-lines-with-innomedia-mta6328-2re-viatalk/ . Presumably the same could be done for the other Gizmos as well.
Adam Nollmeyer commented on my previous post about the 2-line feature offered by Viatalk. I tried it out, and I am glad to report that I have a step-by-step guide on how to get this working.
Before I start - one caveat: for me, line 2 seems to take precedence over line 1. In other words, when someone calls me, the phone connected to line 2 rings, but the phone connected to line 1 does not! Same thing happens for call waiting - only line 2 gets the call. However, I am able to make calls from both lines simultaneously. This may be a Innomedia issue, but I am not certain.
Anyways, here is the step-by-step:
Step 1: Enable line 2 on the Sunrocket/Innomedia MTA6328-2re Gizmo.
a) Enabling the 2nd line is not available via the web interface - it is only available from telnet. Telnet to 192.168.251.1 (in windows, you can do this by going to START -> Run. Type in “telnet 192.168.251.1″ and click OK)
b) Log in using the username ‘admin’ (all lower-case) and password ‘7UprUtew’ (case-sensitive).
c) Type in ‘Mp’ (without quotes, case-sensitive). This option will allow you the configure the phone ports.
d) Follow the on-screen prompts to enable both the ports. When prompted whether you want to save the configuration permanently, select ‘y’.
e) Power-cycle the gizmo by unplugging the power cord, wait 20 seconds, and plug the power cord back in the gizmo. At this point, your gizmo should have both lines up and running.
Step 2: Configure the second line
a) Go to http://192.168.251.1/Voice_adminPage.htm and login using ‘admin’ and ‘7UprUtew’ as the username and password respectively.
b) From the menu bar, go to VoIP -> User Account. For line 1, your ‘username’ must be set to your 11-digit phone number (starting with country code 1). The password was sent to you by viatalk in the activation email. All other fields must be blank (user name, authentication ID, Hot Phone number). Select ‘No’ for the ‘Use hot phone number’ option, and ‘Yes’ for the ‘Fax T38′ option. Click the “Save” button.
c) Repeat step (b) above for line 2 and click the “Save” button.
Step 3: Reboot/Reset/Power-cycle everything
a) Power cycle your cable modem
b) Power cycle your gizmo (If the gizmo is behind a router, then power cycle the router, then the gizmo)
c) Power cycle the phone connected to Line 1
d) Power cycle the phone connected to Line 2
Now everything should be working! Try it out and let me know how it works. One forewarning: For the first few calls, both my phones were ringing. This issue auto-corrected it self after a few calls. So if this happens to you, just wait 10 minutes or so and try again.