topic Unable to create provider - protocol version not supported in Call Control https://community.cisco.com/t5/call-control/unable-to-create-provider-protocol-version-not-supported/m-p/3471238#M711 <HTML><HEAD></HEAD><BODY><P>We developed an xml application for the cisco phone using our test call manager (version 10.5). This xml application uses jtapi to communicate with cucm. Some test users running version 9.x of cucm are getting the following error.</P><P></P><P>Unable to create provider - protocol version not supported - current version E0000. compatible versions 0x00080000, <SPAN style="font-size: 13.3333px;">0x00080001, 0x00090000, <SPAN style="font-size: 13.3333px;">0x00090001....</SPAN></SPAN></P><P></P><P>Is the jtapi version we are using 10.x not backward compatible so that our application can support older versions of cucm?</P></BODY></HTML> Fri, 25 Mar 2016 16:07:00 GMT dustin_armstrong 2016-03-25T16:07:00Z Unable to create provider - protocol version not supported https://community.cisco.com/t5/call-control/unable-to-create-provider-protocol-version-not-supported/m-p/3471238#M711 <HTML><HEAD></HEAD><BODY><P>We developed an xml application for the cisco phone using our test call manager (version 10.5). This xml application uses jtapi to communicate with cucm. Some test users running version 9.x of cucm are getting the following error.</P><P></P><P>Unable to create provider - protocol version not supported - current version E0000. compatible versions 0x00080000, <SPAN style="font-size: 13.3333px;">0x00080001, 0x00090000, <SPAN style="font-size: 13.3333px;">0x00090001....</SPAN></SPAN></P><P></P><P>Is the jtapi version we are using 10.x not backward compatible so that our application can support older versions of cucm?</P></BODY></HTML> Fri, 25 Mar 2016 16:07:00 GMT https://community.cisco.com/t5/call-control/unable-to-create-provider-protocol-version-not-supported/m-p/3471238#M711 dustin_armstrong 2016-03-25T16:07:00Z Re: Unable to create provider - protocol version not supported https://community.cisco.com/t5/call-control/unable-to-create-provider-protocol-version-not-supported/m-p/3471239#M712 <HTML><HEAD></HEAD><BODY><P>Dustin,</P><P>&nbsp; For a successful connection JTAPI version should always be lower than CUCM. Take a look at the compatability matrix at: <A href="https://developer.cisco.com/site/jtapi/wiki/jtapi-ucm-compatibility-matrix/" title="https://developer.cisco.com/site/jtapi/wiki/jtapi-ucm-compatibility-matrix/">https://developer.cisco.com/site/jtapi/wiki/jtapi-ucm-compatibility-matrix/</A> </P><P>Using JTAPI from CUCM 9.x version would resolve your issue.</P></BODY></HTML> Fri, 25 Mar 2016 19:58:56 GMT https://community.cisco.com/t5/call-control/unable-to-create-provider-protocol-version-not-supported/m-p/3471239#M712 mpotluri 2016-03-25T19:58:56Z