SRM9020 ~ Trunked Operating Instructions
TNM-U-E-0012 Issue 2a Page 6 © Comgroup Australia 2010
4. CALL TYPES
The Trunking System allows the user to make a number of different types of call.
The SRM9020 supports most of the call types that can be accessed through the
Trunk Network, including.
• Voice calls between Individuals or Groups
• Include Calls
• Status Calls
• Priority and Emergency Calls
• Diversion Calls
• Broadcast Calls.
Individual Calls. Allow private conversations between two users. Other users
can be included in the call using an Include Call.
Group Calls. Allow different members of a group to participate in a group
conversation. Any participant in the group can leave the call individually, but only
the originator can end the call.
Status Calls. Allow a status number to be sent between users. The SRM9020
allows text messages to be associated with up to 30 status numbers and can
display these text messages when such a status is to be sent or is received.
Diversion Calls. Allow the user to divert incoming calls to another radio,
telephone, etc. Additionally the SRM9020 can call radios that are similarly
diverted. For example, when away from their vehicle, a user can divert calls to
the depot radio.
Normal, Priority and Emergency Calls. If the channel is busy, Normal calls are
placed in a queue and actioned when they reach the top of the queue. Priority
calls jump to the top of the queue unless a previous priority call is taking place.
Emergency calls are actioned immediately.
Broadcast Calls. Are similar to Group calls except that only the initiator of the call
can speak to the other parties in the call.
Notes 1: Some of these call types are only available after prior arrangement
with the Network Operator.
2: Most Trunk Networks have a time limit placed on call duration. The
Network terminates the call after this time.
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