The Unhold command is used to put both legs of the call to InCall state. It only works if a Hold command was initiated to hold both legs of the call.
(Find out what kind of CallStates a call can have.)
You can see how to use this command in a HTTP request and what HTTP response you will get from the phone system (Figure 1).
Step 1: Make a call between two extensions. Use ListActiveCalls command to find the call ID of the call you want to unhold. You can find the CallId in the response, between one of the <CallId></CallId> nodes.
Step 2: Initiate an unhold using a HTTP request as seen in the picture above. Paste the call ID you found in Step 1 in the CallId parameter of the request.
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