This example grabs account information using the CheckAccount function, but does so through a proxy.

Python - CheckAccount (Proxy).py

#!/usr/bin/python

# The suds SOAP client is not included in the default Python  
# distribution and must be installed manually either by manual
# download or easy_install.

from suds.client import Client

url = 'http://staging-api.call-em-all.com/webservices/ceaapi_v2.asmx?WSDL'

# If access to CEA is via proxy define the following and
# use as an option in the Client call
proxyOpts = dict()
proxyOpts['http'] = 'http://proxy.domain.com:3128'

client = Client(url, proxy=proxyOpts)

# Create a factory based on the WSDL
request = client.factory.create('CheckAccountRequestType')

# Setup the factory based on the WSDL specs
request.username = 99919991
request.pin = 9991 

result = client.service.CheckAccount(request)
if result.errorCode > 0:
   print result.errorMessage
else:
   print "Status: %s"    % result.accountStatusDescription 
   print "Balance: %d"   % result.CallBalance
   print "Pending: %d"   % result.PendingCallBalance
   print "Available: %d" % result.AvailableCallUnits