I was getting this error as well and it was because I was referencing the wrong RIS WSDL file. I was referencing the RPC/Encoded WSDL file found at https://<ServerName> : 8443/realtimeservice/services/RisPort70?wsdl and I needed to use the Doc/Literal version found at https://<ServerName>:8443/realtimeservice2/services/RISService70?wsdl. Once I pointed to the correct WSDL file I was able to get the connection to work.
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You might consider running Zebra's Workforce Connect Voice software on the TC51-HC rather than trying to use the Jabber soft phone on that device. Workforce Connect Voice is a soft phone that will register to CUCM. If you get the Premium version you can even have more advanced CUCM functionality like multiple line appearances, group pickup, etc. Essentially CUCM considers the Zebra device a 9971 and you configure it as if it were a Cisco endpoint. Shane
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It can do either if you add an argument. If you enter "isdn service b_channel X state 2 ?" you'll see you have three options: hard, immediate or soft. Hard will drop an active call on that channel and set the new service state, soft will wait for the channel to clear before it changes the service state. I believe immediate will change the service state right away but let an active call finish rather than cutting it off, but you'll want to test that in a test environment to validate.
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