Is there a way to get the ${DEVICE_STATE(SIP/${EXTEN})} output on asterisk AMI before making originate call

Question

I want to create e outbound dialer which will check if a user is available to take call or not before initiating a call from the extension

Answer 1

Send this:

Action: Getvar
ActionID: 1
Variable: DEVICE_STATE(SIP/1107)

To get this:

Response: Success
ActionID: 1
Variable: DEVICE_STATE(SIP/1107)
Value: BUSY

It also works with PJSIP

Answer 2

Yes Definitely. I use it a lot.

Action: SIPshowpeer

Description: Show one SIP peer with details on current status.

Syntax:

Action: SIPshowpeer
ActionID: <value>
Peer: <value>

Here is the wiki link.

Answer 3

There is another approach:

Action: ExtensionState
Parameters: Exten, Context, ActionID

Take a little reading: http://www.voip-info.org/wiki/view/Asterisk+Manager+API+Action+ExtensionState

Answer 4

You can add that peer into some asterisk queue. After that you can use 'queue show [queueNumber]' (visit https://www.voip-info.org/wiki/view/asterisk+cli+command+queue+show) to get each peer status before initiating a call