[Asterisk-Users] Phantom calls on FXO

[Christopher L. Wade]

Shilliday, Jim wrote:
> I'm getting these "calls" at 16 and 46 minutes after every hour.  The
> SIP phone rings, and if we pick up, we get a dial tone.  If we don't
> pick up, we get the dial tone in a voicemail message.  An analog phone
> connected to the incoming POTS line doesn't ring (whether or not *
> remains connected to the line).

Interestingly enough, this just started *again* in the last 3-4 days. 
Nothing has changed in my config, I've not updated to the latest CVS, or 
even a _recent_ CVS.  This simply started happening.  So far I cannot 
explain it.  99% of the time there is no CallerID associated with the 
'dialtone' call, but occasionally there is (seems to be a random recent 
caller id entry).

During my initial * testing and setup I attributed these calls, or 
similar ones, to the fact that one of my lines has a security system 
installed on it and this system will pick up the line from time to time 
to verify it can 'phone home' and 'do its thing'.

I have not verified times for this event as of yet, but I'm sure it is 
somewhat regular like the OP stated.

Also, not to go off topic, _but_ I have recently begun having more echo 
than in my initial testing, and it seems to be getting worse with time. 
  On several occasions I have encountered the 'screeching' recently 
discussed on the list, but this seems very very rare.  My setup is using 
two good ol' TDM400P's with 4 FXO's each.  Every other aspect of my * 
setup is working rather well, all things considered.

Thanks,
Chris


-- 
Christopher L. Wade                     Unistar-Sparco Computers, Inc.
Senior Systems Administrator                            dba Sparco.com
Email: clwade at sparco.com                             7089 Ryburn Drive
Phone: (901) 872 2272 / (800) 840 8400            Millington, TN 38053
Fax:   (901) 872 8482                                              USA