If you edit the template files.
I would only change this one the receptionists phone. And have them do a multicast page to notifiy people there is a parked called. We had two many people see the flashing light and press it thinking it was their phone ringing.
#Configure Linekey1
linekey.2.line = 1
linekey.2.value = SP1
linekey.2.pickup_value =
linekey.2.type = 10
linekey.2.xml_phonebook =
linekey.2.label = Call Park
I also created a dialplan.xml file. Because people cant type sp1 on the phone. I used non used extension numbers for picking up the pages (these numbers are only setup on the yealink phones, not in the phone system. So when a call is parked.
you page out. "Steve, call on 101, Steve call on 101" then he only has to pick up the phone and dial 101 to pickup the parked call.
<?xml version="1.0" encoding="UTF-8"?>
<DialRule>
<Data Prefix="100" Replace="SP0" LineID=""/>
<Data Prefix="101" Replace="SP1" LineID=""/>
<Data Prefix="102" Replace="SP2" LineID=""/>
<Data Prefix="103" Replace="SP3" LineID=""/>
</DialRule>