topic CUCM and 64 bit Tapi driver in Unified Communications Infrastructure https://community.cisco.com/t5/unified-communications-infrastructure/cucm-and-64-bit-tapi-driver/m-p/2357434#M39034 <HTML><HEAD></HEAD><BODY><P>I believe CUCM 8.5.1 introduces the 64 bit TSP and is included in every version onward.&nbsp; What version did you upgrade from?&nbsp; Depending on that, you could simply do a switch version back to the old version sitting on the inactive partition.&nbsp; Please keep in mind that if you do revert back to an older version, you must reset database replication.</P><P></P><P></P><P>Thanks, <BR />Tony <BR /> <BR />Please rate helpful posts!</P></BODY></HTML> Tue, 28 Jan 2014 19:27:55 GMT tonyperla 2014-01-28T19:27:55Z CUCM and 64 bit Tapi driver https://community.cisco.com/t5/unified-communications-infrastructure/cucm-and-64-bit-tapi-driver/m-p/2357433#M39033 <P>Hi community.<BR /><BR />I'm looking for a 64 bit Tapi driver to connect to CUCM. From which CUCM version on does cisco provide a 64 bit Tapi driver?<BR />And is it possible to uninstall an upgrade from version 9.1 back to 8.0?<BR /><BR />Thanks for your support. Patrick<BR /><BR />Sent from Cisco Technical Support iPhone App</P> Tue, 19 Mar 2019 14:48:18 GMT https://community.cisco.com/t5/unified-communications-infrastructure/cucm-and-64-bit-tapi-driver/m-p/2357433#M39033 Patrick Werner 2019-03-19T14:48:18Z CUCM and 64 bit Tapi driver https://community.cisco.com/t5/unified-communications-infrastructure/cucm-and-64-bit-tapi-driver/m-p/2357434#M39034 <HTML><HEAD></HEAD><BODY><P>I believe CUCM 8.5.1 introduces the 64 bit TSP and is included in every version onward.&nbsp; What version did you upgrade from?&nbsp; Depending on that, you could simply do a switch version back to the old version sitting on the inactive partition.&nbsp; Please keep in mind that if you do revert back to an older version, you must reset database replication.</P><P></P><P></P><P>Thanks, <BR />Tony <BR /> <BR />Please rate helpful posts!</P></BODY></HTML> Tue, 28 Jan 2014 19:27:55 GMT https://community.cisco.com/t5/unified-communications-infrastructure/cucm-and-64-bit-tapi-driver/m-p/2357434#M39034 tonyperla 2014-01-28T19:27:55Z CUCM and 64 bit Tapi driver https://community.cisco.com/t5/unified-communications-infrastructure/cucm-and-64-bit-tapi-driver/m-p/2357435#M39035 <HTML><HEAD></HEAD><BODY><P>Hi Tony.</P><P></P><P>I'm Upgrading from 8.0.3.20000 to 9.1. Is it possible to do a switch version back to the old version sitting on the inactive partition.</P><P></P><P>thanks patrick</P></BODY></HTML> Wed, 29 Jan 2014 14:47:50 GMT https://community.cisco.com/t5/unified-communications-infrastructure/cucm-and-64-bit-tapi-driver/m-p/2357435#M39035 Patrick Werner 2014-01-29T14:47:50Z CUCM and 64 bit Tapi driver https://community.cisco.com/t5/unified-communications-infrastructure/cucm-and-64-bit-tapi-driver/m-p/2357436#M39036 <HTML><HEAD></HEAD><BODY><P> Yes you can.&nbsp; After upgrading to 9.1 you will be able to do a switch version back to the inactive partition that is housing your previous version 8.0.3.&nbsp; Again, if you do revert back to 8.0 you will have to reset database replication.&nbsp; </P><P></P><P></P><P>Thanks, <BR />Tony </P><P></P><P>Please rate helpful posts!</P></BODY></HTML> Wed, 29 Jan 2014 14:57:25 GMT https://community.cisco.com/t5/unified-communications-infrastructure/cucm-and-64-bit-tapi-driver/m-p/2357436#M39036 tonyperla 2014-01-29T14:57:25Z