nanog mailing list archives

RE: Modem as a service?


From: Josh Reynolds <josh () kyneticwifi com>
Date: Sun, 6 Dec 2015 18:13:10 -0600

You could always just use UPS equipment that can send out alerts on power
outages and low bat voltage. Or, use equipment that supports dying gasp.
On Dec 6, 2015 4:31 PM, "James Laszko" <jamesl () mythostech com> wrote:

Nah, it wasn't you!  :)

The solution I think we're going to go with is leveraging our existing SIP
infrastructure and write scripts to dial out to the OOB Modem / Fax
machines at the sites that are disconnected from the network.  If they both
don’t answer, we'll assume a power outage.  If one or the other does
answer, it'll queue up for human interaction.

I wrote a script in Perl in about 15 minutes to do this.  God, I'm not
sure if I'm stuck thinking inside or outside the box anymore!


Thanks for the replies and insights,


James


-----Original Message-----
From: NANOG [mailto:nanog-bounces () nanog org] On Behalf Of Karl Auer
Sent: Sunday, December 06, 2015 14:17
To: nanog () nanog org
Subject: Re: Modem as a service?

On Sun, 2015-12-06 at 16:36 -0500, James R Cutler wrote:
On Dec 6, 2015, at 2:19 PM, James Laszko <jamesl () mythostech com>
wrote:

... we don’t need to actually connect to the OOB modem on the other
side, we just need a NO ANSWER/ANSWER kind of response. …

Forget modems - to probe via some kind of analog connection, just get
a single instrument wireless telephone with answering capability.  For
a bonus, put some kind of identifier in the answering message:  No
power > no answer; power > answer.

I must be thick - how does that solve the problem? The OP wants to know if
a modem at a remote site will answer the phone. Maybe I misunderstood the
problem.

Regards, K.

--
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http://www.biplane.com.au/kauer
http://twitter.com/kauer389

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