I just got the ATA187 and have them working. I need to know if there is a way to change settings via a web page? Can't find anything in the online manuals. The part I need to change is turning off the second port. A lot of times we put them next to a fax machine and don't need the second port. I don't want to waste my DLUs.
Unlike the ATA 186/188, the 187 can only be configured via CUCM.
Under, Cisco ATA SIP services
• Cisco ATA configuration through Cisco UCM configuration interface
The ATA configuration has been simplified and streamlined to mimick that of an IP phone. All available options are now on the CUCM page for the ATA.
In CUCM, you need to add an ATA18 device for each FXS port. Second ATA18 device has "shifted" MAC address.
"The first device used the MAC address and the second device uses the shifted MAC address (example, AABBCCDDEEFF to BBCCDDEEFF01). You can add two devices from the Unified CM administration page."
More details in admin guide:
Hope this helps,