Administrator guides for the Cisco ATA 186 and Cisco ATA 188 can
be found at the following address:

CCO:
http://www.cisco.com/univercd/cc/td/doc/product/voice/ata/ataadmn/index.htm
 
 
cisco.com:
http://www.cisco.com/en/US/products/hw/gatecont/ps514/products_administration_guides_list.html