Finally got the problem! Actually for the
ExtensionState action you need hints. So starting with Zimlet version 0.6 I added a feature to check the ExtensionState before placing the call. Seems that this is an old issue. Sorry!
[Asterisk-Dev] ExtensionState problems using Manager.conf API
So the easiest way ist to add
Code:
exten => 200,hint,SIP/200
To your
phones context.