As usual, restart your server after making routes.py changes.
Then make sure that HTTP_HOST in request.wsgi.environ matches the domain name in your domains dictionary.
A minor point, and not relevant to your problem: I'd write the routers this way, so that app-specific defaults (in this case 'script1') are contained in app routers.
routers = dict(
# base router
BASE=dict(
default_application='ivrdemoclient',
ivrdemoclient = dict(
default_controller='script1',
)
parkmi = dict()
)