S120 Adv scan ack payload?

Question

Hi, 
 I want to get a message to know if the S120 center have had get the adv packs.
Is there a way to make a scan respond ack payload pack from the S120 center?

Petter Myhre · Accepted Answer

A scan response will only be sent out when a scan request is received. Please see this . 
 Your question seem very releated to your previous question . The Bluetooth specification doesn't include any standard mechnisms for acking an advertising packet with a scan response, you can try to add an acking mechanism in your application. This could look similar to what RK suggests in his answer: 
 
 I assume you're trying to do something
like wait for a scan request to come
in before setting the response data to
something 'current' instead of keeping
the scan response data constantly
up-to-date even when nobody is asking
for it, for efficiency reasons. If you
are, perhaps you could set the scan
data to a 'not up to date' marker
value in general then, when you
receive a scan request report, start
keeping it up to date for the next few
advertising packets, so the client
picks up the data on its next scan.
After a short while go back to the
default 'not up to date' marker value.
The client will have to see a couple
of advertising packets to get the
data, but that's probably ok.