I’m seeking information on how to report an IP phone
on a call that is occurring on another IP phone.
While the A phone is ringing, Asterisk sends a
notification to a phone B on the call that is going to A, but this
notification is displayed on the B phone display and the user does not
need to hit anything to view the information.
I’m working with “Siemens optiPoint 410 Economy” and
“Yealink T22P” phones.
I Have searched some information on the Web, but without many
details and solutions.
I did some tests with the “sipsak” tool, but I was just able to
send a notification to the Yealink phone (for
tel. Siemens did not work) which appeared as a text message (like
SMS), forcing the user having to press a few keys to obtain the
information. And this is not the goal, but that notifies the phone
screen, without the user having to press any key.