The X.121 address of the remote DTE, specified in full, i.e, with
DNIC, NTN, and subaddress (if used).
If you do not specify
.L linkid ,
above, \*(xt processes this address as specified by the 
.L called_address_opt 
and
.L address_prefix
parameters in the link configuration file for the link automatically
selected.
See Chapter
.XR @numberof(autolink) for a description of how routing is performed
over multiple links.
If you specify
.L linkid ,
the address you specify for
.L remote_x121
must be \fIexactly\fP in the form required for the calling or called
address fields of Call Request or Incoming Call packets.
(The parameters named above are not used to process 
.L remote_x121 .)
