d2sphere_min_pfal_spec.md

 # minimum required PFAL Spec. for D2Sphere
 
 ## LOGIN
-* SFAL Login FRAME
+* [D2S Login FRAME](d2s_login_msg)
 
 
 ## commands
 
 * `$pfal,cnf.show`
-* `$pfal,msg.version.complete.ext`
+* [`$pfal,msg.version.complete.ext`](d2s_spec_version)
 * `$pfal,cmd.sh,<shell cmd>`
 * `$pfal,cmd.at,<at cmd>`
 * `$pfal,cnf.set,DEVICE.NAME=<device_name>`