I agree with you regarding Linksys/Sipura documentation. I've been digging through the SPA/PAP Administrator guides recently and find that many things just aren't described in enough detail.
Here's a dial plan I would suggest for VoXaLot:
Code:
(<911:1aaa???????>S0 |<:1aaa>[2-9]xxxxxx|<:1>[2-9]xx[2-9]xxxxxxS0 |1[2-9]xx[2-9]xxxxxxS0 |[x*][x*].)
Replace 'aaa' with your area code and the question marks with the best local emergency number you can come up with. I don't have SPA-941 documentation handy, so you may need to tweak it a little.
It:
1. Maps 911 to my local police/fire dispatchers.
2. Takes care of 7, 10, and 11 digit dialling at a central point.
3. Passes arbitrary dialling strings (like Sip Broker) through unchanged.
Ron