I have several dialplan questions.
1. I have a termination port which I can use only once at a time. I need 
to count if this port is already used and if not, move on to the next port.
I thought on GROUP_COUNT, but the same port can be addressed from 
different places of the dial plan.
Example:
for dialing international, usa or local
How can I make the Group count globally and reliable?
exten => _9011Z.,200,SetGroup(provider-1)
exten => _9011Z.,201,CheckGroup(1)
exten => _9011Z.,202,NoOp(No ENUM, Line 202)
exten => _9011Z.,203,Dial,IAX2/43735547@provider-1/${EXTEN:${TRUNKMSD}}
exten => _9011Z.,204,hangup
2. DBGet
What is the right syntax for it? In my old dialplan I had such lines:
exten => _692XX,1,DBget(NumberToCall=${CALLERID(num)}SpeedDial/${EXTEN:1})
exten => s,2,DBGet(EMAILADDR=extensionemail/${MACRO_EXTEN})
3. I want to send a voice mail to certain people, and request an input 
from them
Is there an application available for that?
4. I read somewhere that somebody made test questions for his son and 
the son had to use the phone system to get the answer. I am in the same 
boat now. I need to do all kind of tricks that my son must learn in 
time. I am looking for that application. Does anybody remember where it was?
5. I want to record a conversation in a conference room, how to do?
6. I want to record missing prompts, I saw somewhere a simple 
application to record 100 prompts easy, ... where was it?  Number was 666 
bye
Ronald Wiplinger