AT commands 45
P0873832 Issue 05
CTA 500
dm On Line Guide
The type of dialing depends on the type of network chosen to route
the call, so the directives t (tone) and p (pulse) have no meaning and
are ignored.
The ; command line terminator prompts the CTA 500
dm
to dial the
string, attempt to make the connection, and immediately change to
the On-line Command State (rather than the On-line Data State)
upon connection.
Using S value allows linking of the stored dial strings. For example,
if S0 has the string 9-1-800-, S1 has the string 123-4567 and S2 has
the string 123-5678, then issuing the command ATDS0S1&S0S2 is
the same as the command ATD9-1-800-123-4567 & 9-1-800-123-
5678.
Press any key before the call is completed to abort the Dial
Command.
Result Codes
OK
Appears when the command is aborted by the assertion of DTR
and if &D is either 1, 2 or 3 (see the
ÒSerial Interface Control LinesÓ
on page 56
for the commands).
CONNECT rate
When the call is successfully completed, the
connect indication displays along with the rate of the connection to
the network (not the rate of the connection between the CTA 500
dm
and the attached computer) as either 56,000 or 64,000 bit/s.
Immediately after this indication displays, the device enters data
mode. DCD is asserted if &C is 1 (see
ÒSerial Interface Control
LinesÓ on page 56
for more details).
Note:
Data protocols that require the use of both B-channels of the
TCM have only a CONNECT 112000 or CONNECT 128,000
message (not both), since both calls will not be completed
simultaneously.
NO CARRIER
Appears when connection was not established due to
an error or an abort.
Svalue
dial string is taken from a stored telephone number
(value is the location of the stored number; see the
“
General
” commands section for more information)
Character
Use
