[VoiceOps] Strange inbound Calls

Frank Bulk frnkblk at iname.com
Fri Apr 4 16:39:48 EDT 2014

Here's a good posting an issue that has affected some Iowans:


-----Original Message-----
From: VoiceOps [mailto:voiceops-bounces at voiceops.org] On Behalf Of Jay
Sent: Wednesday, October 02, 2013 2:09 PM
To: voiceops at voiceops.org
Subject: Re: [VoiceOps] Strange inbound Calls

On 10/2/13 11:53 AM, Nick Olsen wrote:
> If the call is answered by a human, They hear nothing on the other side.
> I will ask our receptionist to allow the call to continue for a minute
> or so and see if it hangs up at the 60 second mark.
> Timing our own IVR. It takes exactly 60 seconds, If you press nothing to
> get all the way 1 second in to voicemail. As these calls always appear
> leaving 1 second voicemails.

OK, I've seen junk-fax wardialers with similar behavior but if answered
by a person you usually hear a series of beeps.

Try forwarding a dead-air call to a fax machine if you can, see if you
get a junk fax.

Jay Hennigan - CCIE #7880 - Network Engineering - jay at impulse.net
Impulse Internet Service  -  http://www.impulse.net/
Your local telephone and internet company - 805 884-6323 - WB6RDV
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