I have a Linksys SPA3102 hooked up to mynetfone and they recently introduced caller id over stamping to residential plans. All this means is that when you place an outgoing call, instead of your VOIP number being presented to the person your calling, they get your standard Telstra/Optus number (PSTN) or even a mobile number if you so wish. In order to confirm my number and that I own it, mynetfone require you to call from the number you designated and go through some confirmation steps. The issue here was that the default setup and dial plan routes all calls via VOIP, only calls to emergency numbers automatically get routed via PSTN (this is so they can home in on your location).

So what I wanted was a way to hit the ‘#’ key and get dial tone via my PSTN line, this is really easy to setup as its just an addition to your existing dial plan.

Log in to your SPA3102 as admin, click on ‘Voice’ and ‘Advanced’.
Next click on ‘Line 1′ and scroll all the way to the bottom till you see ‘Dial Plan’.
On the end of my existing dial plan I added the following:

|<#,:>xx.< :@gw0>

So my entire dial plan now looks like this:

(*xx|[3469]11|0|00|[2-9]xxxxxx|1xxx[2-9]xxxxxxS0|xxxxxxxxxxxx.|<#,:>xx.< :@gw0>)

So now whenever I want to dial out via the landline all I have to do is prefix the number with a ‘#’ and I’m set.