Adding Listen and Barge to Asterisk with Chamspy

[gservices]

Hello,
How to monitor a call from a softphone that isn't logged in Vicidial?
We want to make listen or Barge in real time the Phone Extension that is register in softphone(xlite).
We want to monitor certain extensions that start with 8 such as 8001. Also, what if you want extension 8001 to be the ONLY one doing this functions listen or barge.
I will only change the Dialplan Entry in Vicidial:

exten => _8.,1,AGI(agi://127.0.0.1:4577/call_log)
exten => _8.,2,GotoIf($[${EXTEN:6:1} = 3]?4)
exten => _8.,3,Dial(${carrier_TRUNK}/39${EXTEN:1},,tToR)
exten => _8.,4,Hangup

[bobchaos]

I believe <webroot>/agc/astguilcient.php has a function for that that should be able to target non-agent phones on the same system. I don't have access to verify that just now so don't quote me on that :/

[gservices]

Have any use this function on asterisk?

the link is this but the question is vere to use this
http://hackrr.com/2013/freepbx/adding-l ... -asterisk/