Hi Ango -
> Does any can give me some example to setup call parking and call
> transfer of a call?  In my understanding, call parking and call transfer
should be like
> something below.  Am I right?
>
> Call parking:
> caller A -> callee B
> callee B park her call
> callee B get back her call in another phone
>
> Call transfer:
> caller A -> callee B
> callee B transfer to C
> finally: A talks to C
Yeah, that more or less describes parking and transferring.  Parking
and asterisk-based transfers are set up in features.conf.  I'll
suggest you have a look at the sample features.conf file, or you can
look at the wiki, too:
http://www.voip-info.org/wiki/view/Asterisk+config+features.conf
- Noah