Hi James,
According to the Cisco Unity documentation, Fax Mail Users is no longer a Licensed feature with Unity 4.0. Have a look;
Q. What features are controlled by licensing?
A. For Cisco Unity 4.0, these features are controlled by licensing:
Software version
Sessions/ports
Voice mail users
Unified messaging/viewmail users
Text to speech (TTS) sessions/ports
Cisco Unity inbox/voice messaging interface (VMI) users
Bridge sessions/ports
Full languages
Audio Messaging Interchange Specification (AMIS)
Voice Profile for Internet Messaging (VPIM)
Failover backup server (on primary server license)
Pooling
For Cisco Unity 2.4.x/3.1.x, these features are controlled by licensing:
Software version
Voice mail ports
Voice mail users
Fax mail ports
Fax mail users
TTS ports
TTS users
TTS vendor
Integration
VMI users
Bridge sessions/ports
Full languages
SA languages
Unified messaging/viewmail users
Active assistant users
Networking
AMIS
Failover backup server
From this good licensing doc;
http://www.cisco.com/en/US/products/sw/voicesw/ps2237/products_qanda_item09186a0080094ce5.shtml#q12
Hope this helps!
Rob
