[Twisted-Python] Possible bug in from twisted.internet.app import Application ?

[jjanecek at telusplanet.net]

I am running freebsd with python 2.2.2 and twisted 1.10

the same code worked fine on another server which is identical
except it is running twisted 1.07 

anyways

from twisted.internet.app import Application
from pyRtpRelay import TRelayService

print "Relay Going Up"
application = Application('pyRtpRelay')
RelayService=TRelayService(application)
RelayService.Start()

Inside my object TRelayService when I call

application.ListenUDP(XXXXXXXX) it will not listen on the required UDP ports and
returns None.

As a temporary hack I then when
       from twisted.internet import reactor
       reactor.ListenUDP(XXXXXX)

and it worked fine

Thanx John