I contacted
VoIP.ms and verified that I can get E911 for the same as Callcentric, BUT I have to obtain a phone number for $.99 a month and a $.50 setup charge, so that makes it $30 a year instead of $18.
While E911 is valuable, the two of us are able to communicate where we live to the 911 operator. I will continue to research E911 options, I want to pick the most reliable, not the least expensive or least reliable.
With Callcentric's site up I logged in and cancelled my account and requested a refund.
I also had hoped to post the particulars about how Callcentric's E911 database (managed by a third party) had had some issues a while back, but when I logged on I discovered that their Trouble Ticket system deletes old closed tickets at a certain point (and all emails to you regarding the trouble ticket provide no info except a link to the ticket, so I can't go back into my emails and provide further info). Suffice it to say that earlier in the year (end of March?) I was testing the 911 number after I had a problem with the OBi, and discovered that the E911 database was not providing the correct info. Callcentric looked into it and discovered that their third party provider had an issue, which they fixed. However, it made me concerned regarding the reliability of this service I was paying for. Now, with the denial of service attacks and the power outage, I've decided to not use them any longer.