Specifications

TC35i AT Command Set
Confidential / Released
TC35i_ATC_V01.05 Page 173 of 278 04.08.2003
Incoming Class 2 messages (SIM specific) will be stored to the SIM card only,
no matter whether or not there is free “ME” space.
As a result, the ^SMGO: 2 indication (see AT^SMGO in Chapter 7.20) may be
presented without prior indication of ^SMGO: 1. For more information regarding
SIM and ME specific message classes refer to <dcs> and the following specifi-
cations: GSM 03.38 and 3GPP TS 23.038.
Handling of <mem3> storage:
· When <mem3> is switched over from “MT” to “SM” all free “ME” locations will
be filled with dummy short messages. This procedure can take up to 35 sec-
onds, until all the 25 records are written.
If switching from “MT” to “SM” was not finished due to error or user break, the
value of <mem3> remains “MT”, but some of the dummy records remain in the
“ME” storage. These records have to be deleted manually.
When <mem3> equals “SM”, do not delete the dummy messages in the “ME”
storage. They will be automatically deleted when you switch back from “SM” to
MT”. Again, this may take up to 35 seconds.
If switching from “SM” to “MT” was not finished due to an error or user break,
the value of <mem3> remains “SM”, but the “ME” storage will no longer be
filled with dummy records. New incoming short messages may now be written
to the “ME” storage, if “SM” is already full. To avoid this, repeat the AT+CPMS
command as soon as possible to switch <mem3> back to “MT”. As an alterna-
tive, you can manually delete the dummy records and issue
AT+CPMS=MT,MT,MT.
· In Multiplex mode, the parameter <mem3> will be the same on all instances,
but the settings of <mem1> and <mem2> may vary on each channel.
· While <mem3> equals “SM” and <mem1> equals “ME” it is possible that, after
deleting short messages from “ME”, the freed space on “ME” is reclaimed for
new incoming short messages, when there is no space left on the “SM” stor-
age. As it is often the client’s concern to have received short messages stored
only to the SIM card, inconsistent settings should be generally avoided. This
can be achieved simply by using the same parameter for all <memx>.