running             CMEProviderConfig providerConfig = new CMEProviderConfig("config.txt"); produces My config.txt:   Exception in thread "main" java.lang.NumberFormatException: null at java.lang.Integer.parseInt(Integer.java:417) at java.lang.Integer.valueOf(Integer.java:554) at com.cisco.cme.cti.SmartProperties.getIntValue(SmartProperties.java:89) at com.cisco.cme.cti.CMEProviderConfig.createCMEProviderConfig(CMEProviderConfig.java:174) at com.cisco.cme.cti.CMEProviderConfig.(CMEProviderConfig.java:82) at ucxsi.console.UCXSIConsole.main(UCXSIConsole.java:105)   Config.txt: # specifies the ip address of the interface that you want to use localHost = 10.0.0.200 # specifies the SIP port on which you want to listen for CUCME events localPort = 5070 #Specifies the transport layer protocol you want to use controlTransport = tcp subscriptionTransport = udp # Specifies the CUCME ip address proxyHost = 192.168.1.54 #Specifies the CUCME SIP port (it is 5060 by default) proxyPort = 5060 ##Username and Password #These are the usernames and passwords configured by the CLI : # ‘xml user dummyuser password cisco’ user=xml password=1234 # this is the name of the Session server configured on CUCME for accepting # registrations from the UCXSI SDK application. The CLI is: # voice register session-server 1 # register-id sampleapp # sessionServer = sampleapp

That single line is the complete code, plus import for sdk and mininimal Java main class definitions.   Maybe post your sample code that works for file-base CMEProviderConfig