Short Data Services; Status Messages - Motorola MTP830 S Product Information Manual

• No other services can interrupt this type of call.
• Hot Mic functionality cannot be used.
• Speech can only be in Clear mode, even if any of the encryption services are enabled. The only exception is E2E
Encryption.
Note: Not all infrastructures support this feature. Please consult with your service provider before enabling
this feature.

Short Data Services

The radio supports the following Short Data Service (SDS) message types:
• SDS Status.
• SDS User Defined Data Types 1, 2, 3.
• SDS User Defined Data Type 4 with or without SDS Transport Layer (SDS-TL).
The feature supports the following addressing modes:
• Radio to radio.
• Radio to talkgroup.
• Radio to external subscriber number (gateway address).
Note: For SDS-TL, the message can be sent through the service center.
The radio provides a short data bearer service for both internal and external applications.
The radio supports SDS-TL services which provide end-to-end acknowledgments, delivery report requests, and
message numbering for SDS user-defined data type 4 messages. The TL also provides SDS access for applications
that do not request these transport layer services, however, use a Protocol Identifier (PI). The radio can send the
delivery report by using an appropriate TETRA signaling, even if the originator requested a short report. The radio
can support the old SDS-TL standard for operation on legacy systems, or for operation on other SwMIs.
An externally connected device may access the SDS services in the radio using AT commands and TNP1 protocol.
An external application may use this service to send and receive SDS statuses, SDS user-defined data types 1, 2, 3,
and 4.
Downlink SDS messages type 4 are presumed to contain a PI for identifying the target application. If an external
application has registered with the radio for that PI, the radio delivers the message to the target application. The radio
may receive downlink SDS messages that are successive retransmissions of a message already received and
acknowledged by the radio. The radio does not display these messages, nor store in them in the inbox, nor send them
to an external application.

Status Messages

You can select from a list of up to 400 pre-programmed alphanumeric aliases each of which corresponds to a status
value. The valid range of uplink status values is a set of provisioned parameters. If the radio is not enabled with
targeted status, the status value is sent over the air interface to the address of the selected group. The radio recognizes
the general status acknowledgment sent from the SwMI, as well as the negative acknowledgment. In TMO, if no
status acknowledgment or negative acknowledgment is received, the radio retries sending the message. The number
of retries and time to wait before retrying are provisioned parameters. You are notified of the delivery status. As there
is no acknowledgment for DMO status messages, you are notified only of sending the status message. The radio does
not initiate sending of status messages on a traffic channel.
If the radio is provisioned with the targeted status, the status value is sent over the air interface by default to the last
sent target. You have also an option to specify a different individual or group to send the message to. In other words,
you can send an SDS status message to a directly entered ID (for example, ISSI, GSSI, MS-ISDN). If the radio is not
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