You can specify the address for a relay device in the format (relay code) + (destination) + (@ (host name +) domain name).
xxxxxx: Fax number such as 01234xxxxx
@yyyyyy: @(host name +) domain name

A: Relay code
B: Destination - Fax number (0123456789) or relay device contacts list number (*XXXX)
C: Host name - Host name of the receiving side (HOST)
D: Domain name - Domain name of the receiving side (domain.com)
An address in this format contains the information needed to receive fax data sent from an Internet Fax device at the relay device and send it as a fax to fax number XXXXXX.