Nortel IP Softphone 2050 is not working on Windows 7 64-bit. Is there is any patch to make it work?
You will need the latest service pack 1 (4.4) if you want Windows 7 64-bit compatibility.
"Supported platforms: -Microsoft® Windows XP™(Service Pack 3) -Microsoft® Windows Vista (Service Pack 1) - 32 bit and 64 bit versions -Microsoft® Windows 7 - 32 bit and 64 bit versions" - Avaya Support
"Supported platforms:
-Microsoft® Windows XP™(Service Pack 3) -Microsoft® Windows Vista (Service Pack 1) - 32 bit and 64 bit versions -Microsoft® Windows 7 - 32 bit and 64 bit versions" - Avaya Support