I have a few Grandstream gxp 2010 phones. In my Asterisk-server I created a feature to park calls, like this:
parkext => 700 parkpos => 701-710 context => parkedcalls findslot => first parkingtime => 4500
This is supposed to park a call in the first available extension. Usually 701. If I understand correctly, Asterisk is supposed to tell me the extension where the call got parked. But when I use the transfer button on the Grandstream gxp 2010 phone, the call is just transfered, without informing me where it is transfered.
Does anyone know how I can fix this?