Sony Ericsson Mobile Communications Inc. TR-505-A2 Manuale Utente
DM15/25 Integrator’s Manual
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Conference Calls (Multiparty). Permits the module to maintain simultaneous communication
with more than one party.
with more than one party.
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Call Barring. Allows the module to bar certain categories of outgoing or incoming calls. The
categories are determined by one or more barring programs.
categories are determined by one or more barring programs.
Note! Some value carrier services as Call Forwarding and Call Waiting may vary depending on your service
provider’s network.
Value carrier services are activated/deactivated via the ATD command using a specific code. This code might vary
depending on the service provider. Consult your service provider for further information.
provider’s network.
Value carrier services are activated/deactivated via the ATD command using a specific code. This code might vary
depending on the service provider. Consult your service provider for further information.
6.5.3
Short Message Services
The DM-15/DM-25 module provides the functional capability to create and send text messages across the air
interface. These messages are transported on the air interface via the layer-3 R-DATA message.
The key management attribute of a short message is the folder in which it resides. Folders are convenient
groupings of similar messages. For example, common folders are in-box, out-box and hold-box. This pool of
folders use a common set of indices (internally controlled) to reference each message location. The incoming
messages are stored in non-volatile memory until deleted by the host application using the AT+CSDM
command .
The module supports the following SMS services in TDMA:
interface. These messages are transported on the air interface via the layer-3 R-DATA message.
The key management attribute of a short message is the folder in which it resides. Folders are convenient
groupings of similar messages. For example, common folders are in-box, out-box and hold-box. This pool of
folders use a common set of indices (internally controlled) to reference each message location. The incoming
messages are stored in non-volatile memory until deleted by the host application using the AT+CSDM
command .
The module supports the following SMS services in TDMA:
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Sending : Mobile-originated (MO) according to EIA/TIA 136-350.
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Receiving: Mobile Terminated (MT) according to EIA/TIA 136-350.
The maximum length of an SMS message is 201 bytes.
6.5.3.1 Services for Short Message Control
The services provided by the DM-15/DM-25 module for short message control are the followings:
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Message formatting – The module formats short messages for transmitting over the air interface.
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Message storage – The module stores messages received over the air interface in an in-box; it
queues messages for transmission over the air interfce in an out-box.
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Default information element storage – The module stores default information elements for use in
formatting short messages.
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Message reference assigment – The module assigns message reference numbers to new short
messages that are transmitted over the air interface.
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Message index assigment – The module assigns message index numbers to messages received
over the air interface.
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Privacy Management – The module supports privacy criteria.
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Message reporting – The module reports incoming messages received over the air interface.