ROIP302 Series User menu
master and the other will register to the master. Please make sure that both RoIP302s do
not have the same Group SIP Number.
The diagram below demonstrates each RoIP302 are connected to 3 Radio Terminals. Each
terminal is assigned to a different group. The two RoIP are connected via a IP connection
as shown by the blue line. The PTT control signal is represented by the single purple lines
and the voice signals are represented by the double purple lines. When a voice
transmission is initiated from a channel, the RoIP302 will connect to the other RoIP302 in
order to establish a link with the corresponding channel automatically.
2. Group Transmit Mode
At least one RoIP302M is required to support the Group Transmit mode. This RoIP302M is
the master with its own unique Group SIP Number and offers its built-in SIP server for up to
12 RoIP302s (RoIP302M can also register as well for expansion) to register. The diagram
below shows only RoIP302s are used to register to the RoIP302M. Each RoIP302s must
have its unique Group SIP Number. A maximum of 12 RoIP302s can be deployed in this
example. Please note that only one one-way voice transmission is allowed at all time.
When a voice signal is transmitted from a RoIP302, RoIP302M will re-transmit the signal to
all other clients in the same group. If the voice signal is coming from a PTT port (radio
terminal) of the RoIP302M, the RoIP302M will re-transmit the voice signal to all other PTT
ports and SIP clients that are in the same group. For example, if Channel 802 talks, Channel
701, 803 and 804 can hear. If Channel 701 talks, Channel 802, 803, and 804 can hear.
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