Hi Ilana,
The Communications Manager Express (CME) PC port only works on certain phones. Ensure the phone load is compatible with the CME version prior to testing.
Reference:
Cisco IOS, Phone, UCM and CUC Packet, and PCM Captures Command Reference
...
The correct configuration for that platform 44XX is this:
Collecting debugs in Syslog server
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Router#configuration terminal
Router(config)#no logging console
Router(config)#no logging monitor
Router(config)#nt...