<div dir="ltr">Hi,<br><br>A theorical question :<br><br>For some SIP hardphones (or mobile handsets), when receiving a busy response, it is possible to ask for automatic redial and your phone will later try to call your contact.<br>
As I'm wondering how I could provide a way to cancel those automatic redials, I'm trying to understand how it works.<br><br>My question is :<br>1- do SIP hardphones usually wait for some input from Asterisk (when AutoRedial is asked, a SUBSCRIBE is sent to be notified of status changes)<br>
2- do they redial on their own, after a waiting period,<br>3- both ?<br><br>My testing would show 3 (but I'm far from certain) as :<br>- I saw SUBSCRIBE messages flowing<br>- the first redialed even when then the other end was kept in a busy state<br>
<br>Regards<br></div>