Dialplan configuration to handle Call Waiting?

[suboxes]

I am not a dialplan expert but I would like to be able to setup my dialplan to allow switching between the active call and the incoming call or held call with a keypad entry on the phone. After reading the dialplan examples in the wiki  http://wiki.e1550.mobi/doku.php?id=configuration it looks like the setup is going to be related to this section:

exten => s,n,GotoIf($["${CHANNEL(callstate)}" == "waiting"]?waiting-call)
    ; now we provide channel function argument callstate
    ;   possible values
    ;           active          ; enjoy and speek
    ;           held            ; this call is held
    ;           dialing         ; for outgoing calls
    ;           alerting        ; for outgoing calls, number dialed and called party ringing
    ;           incoming        ; for incoming calls
    ;           waiting         ; for incoming waiting calls;
    ;                              if callwaiting=no channels for waiting calls never created

    ;           initialize      ; never appear
    ;           released        ; never appear

    ; Answer on waiting call activate this call and place any other active calls
    ;   on hold, but execution of dialplan for these calls not break stopped or frozen
    ;   When active call terminated one of held becomes active.

exten => s,n,Set(CHANNEL(callstate)=active)

Anyone willing to share a chunk of their extensions.conf that is working well for them? It would be a great help to me and others I'm sure.

[suboxes]

Just a little bump to see if anyone has any suggestions. Thanks in advance!

[Hafeez Rehman]

Were you able to find a solution? I have a same issue.

[Hafeez Rehman]

On Thursday, March 15, 2012 12:49:38 PM UTC-5, suboxes wrote:

[Andrew Geddes]

Hafeez,

I was not able to find a solution to this. If you are able to work something out please let me know.

Thanks,

Andrew

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[Paulo Afonso Jr]

solution? anyone?