force shutdown the voice services including H.323 (don't wait for calls to complete)

Set up H.323 for slow start
make the session transport udp
set the # of calls that the tcp session can handle to 20
set the call idle timout to 5 seconds

set up a h323 voice class
set up slow start
set the time to hear response from remote gateway to 3 seconds
set the time to hear response to h.225 setup message to be 3 seconds

set up a codec voice class
codec preference 1 should be g711ulaw 160 byte payload
codec preference 2 should be g729br8

set up a dial peer to use the H323 voice class you configured above

set up a dial peer to use the codec voice class you configured above

configure the src address for h323 commands to originate from the loopback interface

set up a dial peer to go to h.323 gw at 192.168.2.1 for any 4 digit DN starting with 3