MC55 AT Command Set
7.3 ATD s
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MC55_ATC_V01.05 Page 142 of 469 2/10/04
Confidential / Released
Example
The following example shows the call setup procedure when a call is already active an d a second call attempt
fails because the line of the called party is busy:
atd03012345678
Dialing out the first party's number.
OK
The first call is established.
ATD03022222222
The number of the second party is dialed.
OK
The response "OK" is issued immediately though no call is established
(same behavior as is you had chosen AT^SM20=0.)
BUSY
Line of the second called party is busy.