[asterisk-biz] AMD Tweaking

[Dave Batchelor]

Out of curiosity, has anyone made enhancements or modifications to the 
AMD portion of their Asterisk setup?  We currently run a service that 
places calls for businesses and are running into issues where when their 
users answer the phone, they may have to wait 8, 10, 20 seconds before 
the message begins to play, also we're running into the problem where 
the voicemail of some major cell carriers like alltell and sprint arent 
being detected and are being handled as a live answer.

It obviously varies from phone to phone and we realize there's no way to 
get it 100% for everyone.  Perhaps the best way to handle it is to have 
a rapid detect version and a more accurate detect version and give each 
business the choice.  We were wondering what the best settings for such 
a setup would be.  Currently, we run AMD with the following: 
3500|1500|300|5000|120|50|5|256 followed by a waitforsilence with the 
following: 2000|1.

While we know it isn't going to work perfectly we want to at least get 
it working correctly so it leaves messages on all major cell phone 
providers.  If there is a company who is very knowledgeable in AMD we'd 
be very interested in paying you to help us create the best possible 
solution.

We are open to any suggestions or advice on this one as we've tried 
tweaking the values and all that seems to accomplish is an improvement 
on one phone and a backstep on another.  Thanks!!