Cisco Unified Communications 500 Series - Cisco Smart Business Communication Systems

https://supportforums.cisco.com/docs/DOC-9772

Can the T1/E1 module on UC500 terminate Voice and Data?
The VWIC-2MFT-T1/E1 card on UC500 can only be used for Voice T1 termination. It cannot be used for terminating Data T1s. On UC500, this card does not support multiplexing of Voice and Data. For Data connectivity, using an ISR based T1/E1 is recommended.

What are the total number of PSTN interfaces that the UC500 can support?
Depending on the UC500 model or SKU - can have any of the below:
4 to 12 FXO ports or 2 to 6 BRI ports (VIC slot can be used to add interfaces in certain model)
T1/E1 VWIC interface card for use in the 8-, 16-, and 32-user UC500 SKUs (VIC slot can be used to add this T1/E1 interface card)
UC500 48-user SKU is also available with integrated T1/E1 interface.

What T1 parameters are supported on the UC500 for voice termination?
The below parameters are supported:
T1 line coding = B8ZS
T1 framing = ESF
Interface switch Type for PRI - National with FAS (User side)
Hunt Type = two way, descending (channel 23 to 1)
Switch Protocol = See ISDN PRI switch-types above