[asterisk-users] "ring splash"

[Kevin P. Fleming]

On 05/26/2010 11:36 AM, Jeff LaCoursiere wrote:

> So to the question - can the TDM410P somehow tell the difference between a 
> "ring splash" and an actual inbound call?  I think in the meantime I will 
> send inbound POTS calls to an auto attendant that will eventually hang up, 
> but would love a more elegant solution ;)

The simple answer is no; the ling rings, the ringing is detected and
forwarded up the software stack.

The more complex answer is that first, the TDM410P doesn't actually know
anything about detecting ringing, ring patterns, or anything of the
like, it's essentially dumb hardware :-) The driver for the hardware
detects the incoming ring voltage and debounces it before reporting it
to the DAHDI core and then upstream to Asterisk; it is possible you
could set the debounce timer to require that the ring last at least
500ms (or maybe even a full second) before reporting it, which would
absorb these ring splashes.

-- 
Kevin P. Fleming
Digium, Inc. | Director of Software Technologies
445 Jan Davis Drive NW - Huntsville, AL 35806 - USA
skype: kpfleming | jabber: kfleming at digium.com
Check us out at www.digium.com & www.asterisk.org