Grant Or Deny Rdl Request From Remote Modem - Epson ESC/VP21 User Manual

Result Code: OK
This command sequence returns the modem to the command state but does not
break the established connection. It then disables the test timer and sets up an
internal digital loop inside the modem. End the test when you confirm that the
remote user has already finished by issuing:
Command:
Result Code: OK

4.6 Grant or Deny RDL Request from Remote Modem

The modem can grant a request from the remote modem for a remote digital loopback
command (default). Once the modem grants the request, it sets
with the &T4
up an internal digital loop as in Figure 4-5. When the remote modem terminates
the remote digital loopback test by sending a termination sequence. The modem
breaks the external digital loop.
The modem can deny the request for a remote digital loopback test with the &T5
command. To set
Command:
Result Code: OK
62
AT&T0<CR>
as the default. issue:
&T5
AT\N1 <CR>
AT&T5&W<CR>
test
TESTING - 4