phrelay

Hi guys,
I need a kind of heart beating functionality of phrealy.
What this means, to exchange through TCP/IP “I am alive”
kind of messages with phrelay. I am implementing it on application level,
but I am just wondering if there is something like that implemented in
phrelay!?!
You catch it ? phditto should be restarted in case partner phrelay does
not respond ( system restart ).
Regards !
Kostadin Vardin