Here are some practical ideas:

It's a phone line in a church, right? It's possible that the wiring for 
this phone line might be in a secluded closet or basement, and there may 
have been another extension somewhere in another room that nobody 
remembers...

Some corporate use fax machines have the ability to FORWARD incoming 
faxes to another phone number. It's used for saving money on long 
distance calls. If you have to send 10 faxes to 10 different offices 
that are all in the same area code, you could send the fax ONCE to one 
of the fax machines, and then it turns around and resends that fax to 
the other 9 numbers. I believe Ricoh fax machines have this feature. You 
may want to check and make sure it's turned off. Fax Spammers could be 
taking advantage of this feature, and making you call 911.

Brad Stockdale wrote:
> No... I've seen some strange things. But never a wifi router dialing 911 over 
> a phone line that its not even connected it. Three times in a day and a 
> half...
> 
> How about this idea: Someone is playing a practical joke and is opening up 
> your NID outside the location and connecting a phone in and dialing 911...? 
> That's a lot more probable than a wifi router dialing 911.
> 
> Brad
> 
> 
> On Thursday 16 August 2007 13:39, Mark E. Skeels wrote:
> 
>> Actually, I was thinking this:
>>
>>
>> There's a WiFi repeater in close proximity to the phone lines. Of
>> course, it also has a small wall-wart type switching power supply.
>>
>> I was wondering how possible it might be that some kind of interference
>> from the repeater or it's power supply might be taking the line off hook
>> externally, then somehow pulse-dialing 911.
>>
>> That seems to me almost statistically impossible, let alone to do it 3
>> times in a 36 hr period. But if the switcher pulsed regularly at the
>> right frequency...?
>>
>> Mark
>>
>> Robert Rolf wrote:
>>> Solenoid. R/C servo or DC motor with a small lever to press/release the
>>> hookswitch. Do you need to put it back on-hook when you are done?
>>>
>>> Mark E. Skeels wrote:
>>>> Can you guys think of any way a phone line could be induced to go off
>>>> hook via a stimulus external to the phone line (not electrically
>>>> connected?
>>>>
>>>> Mark
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