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GSM-R user procedures (cab radio Version 2)

7 Using the cab radio to communicate

These procedures must be used alongside the rule book. You must always use GSM-R

as the normal radio system if it is available for use. That is, if a GSM-R cab radio has

been fitted and commissioned in the cab of the train, and the route for your journey is

covered by GSM-R as indicated in the sectional appendix and by line side signs.

7.1 Receiving a call

When you receive an incoming call, you should always follow the correct procedure and

only respond providing you can do so safely.

7.1.1 Receiving a point-to-point call

Under normal operating conditions it will be rare that you receive a point-to-point call. This

is because signallers will normally request you to call them by sending you a ‘Contact

Signaller’ operational text message (see section 7.2.1). However, if your train is stationary

then the signaller can make a point-to-point call.

When you receive a point-to-point call, the cab radio

will ring until the call is connected. The display will

show the caller’s identity.

The cab radio will answer most calls automatically,

for example, calls from signallers, with speech at

first sent over the loudspeaker.

You must check that the person you are talking to

is the same as the one displayed.

 Non-operational calls will not be automatically answered and will require the driver to

either lift the handset or press the

button to answer the call.

You must respond to the incoming call only when it is safe to do so, by lifting the handset

from the cradle and speaking into the mouthpiece. You will now hear the signaller through

the handset. You will also still be able to hear the speech at a much lower level through

the loudspeaker when the handset is off its cradle.

Even though the call will be answered automatically after 2 ring cycles, you will have a few

seconds in which you can, if you want to, reject the incoming call.

To reject an incoming call, press while the cab

radio is ringing.

GSM-R GB

1A45

Salisbury Panel 1

Incoming call

GSM-R GB

1A45

Salisbury Panel 1

Connected

GSM-R GB

1A45

Salisbury Panel 1

Cancelled

Pressing or replacing the handset whilst in a

point-to-point call will end the ongoing call.

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