Status
Overview
Status messaging is a feature, that was introduced into Capacity Max in software release R2.7. It allows the transmission of a 7-bit number in a single PDU; on the control channel. The number is mapped to a preconfigured text string in all radios. When a radio receives a status message, it will display the sender radio ID together with the preconfigured text string.
The method for sending and receiving status messages in Capacity Max is currently defined in ETSI TS 102 361-4 (v1.10.1) §6.6.6[1].
Seven bits ought to allow for 128 possible statuses but status 100 to 128 are reserved for the below leaving 0 - 99 for actual use:
- 100 - 123 not defined yet.
- 124 is a system status used to cancel an emergency alarm.
- 125 is a system status used for the Transmit Interrupt.
- 126 is a system status used for an emergency alarm.
- 127 defines the Status Polling Service.
It is possible for a terminal to send a status to another terminal; a talkgroup or a dispatch application (as long as that application supports status messaging).
Status messages are more efficient than text messages in that they are sent over the control channel using a single burst from the source radio. Text messages however, require a traffic (payload) channel to be allocated and require multiple bursts to complete the call.
Supported products and systems
Non display radios support the sending of status messages but not the reception thereof due to no display.
This is a Capacity-Max-only feature.