phrelay's heartbeat

I read that Phrelay has a heartbeat to check if the windows client machine
is still alive, it takes
about 2 mins for Phrelay to terminate if connection between the qnx and
window machine
get lost, during that 2 mins, al the photon apps remains frozen, I tried to
use qnx_psinfo()
to check the state of each photo apps, but none of the state gets changed,
they remain at
reply blocked, everything normal after that 2 mins…

In order for me to get around this, is there a way I can change this default
2 mins?
phrelay -T numberofsec in inetd.conf doesnt seem to work, i dont know if
the right one to change… pl help!