North American Network Operators Group

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Re: INOC-DBA Phone (was Re: Comcast Contact)

  • From: Bill Woodcock
  • Date: Thu Apr 14 01:04:38 2005

      On Thu, 14 Apr 2005, Jeffrey I. Schiller wrote:
    > I have one, and its cool. However the time I *really* needed it was
    > because I couldn't reach a particular AS... and of course neither could
    > my INOC-DBA phone (sigh...).

There are several ways around that...  Probably the easiest is to have 
your INOC-DBA phone number ring not only the SIP phone on your NOC desk, 
but a couple of commercial gateways like Vonage and BroadVoice and so 
forth, which would not, under most circumstances, all be affected by the 
same outage.  One hopes.  They would then ring PSTN numbers for you.

Another way around the problem, which has been the most common one 
historically, is to put the INOC-DBA phones on different DSL/cable 
providers' lines run into your NOC, as well as on your own network.  Three 
phones, reached through three ASNs, and _something_ should ring.

A third way, which only a few ISPs have done, is to run a separate 
infrastructure out to a few exchanges, just to support those VoIP calls.  
That probably only makes sense if you're doing it anyway, for broader VoIP