[asterisk-users] False answer() being sent by cellphone providers

[Mike Ely]

On 7/9/10 9:57 AM, "Mike Ely" <mikeely at amyskitchen.net> wrote:

> Hello, list.
> 
> I've set up an outbound alerting system to play a recording when systems go
> down, etc. and I'm noticing that cellphones tend to answer() and then start
> ringing the actual handset.  So far, I've verified this behavior with
> Verizon, T-Mobile, and Google Voice (the last produces a SERIOUS delta
> between bogus answer and actual answer).
> 
> Has anyone figured out how to detect the actual cellphone answer rather than
> the bogus one sent by the cell carrier?  In the short term, I just have the
> call play MOH for ten seconds before announcing that all hell has broken
> loose in the server room, but it¹d be nice to have something a bit more
> accurate and reliable.
> 
> Cheers,
> Mike
> 

Argh, got distracted, here's the version with a Subject: header.