Outgoing Calls

6 d u

6 z # d

u

When you receive a busy tone

If you call an extension and receive a busy tone or get no answer or all external lines are busy you can use these methods:

Callback

If a called extension is busy or there is no answer:

Press.

It can take several seconds before the procedure is executed. Note: France, Finland and Sweden, press 5

Replace the handset to finish the procedure.

You are called back (recall ring signal) when the ongoing call is finished or the next time a new call is finished. You have to answer within eight seconds, otherwise the Callback service is cancelled.

Lift the handset when you are called back.

The system calls the extension.

Note: Callbacks can be activated on several extensions at the same time.

If all external lines are busy (after dialing the digit or digits to get a line):

Press.

Note: France, Finland and Sweden, press 5

Dial the external number and press.

Replace the handset to finish the procedure.

When an external line becomes free, you will be called back (recall ring signal). You have to answer within eight seconds, otherwise the Callback service is cancelled.

Lift the handset when you are called back.

The system calls the external number.

Note: Only one Callback can be activated on a busy external line.

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Dialog 4187 Plus

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Ericsson 4187 Plus manual # d, When you receive a busy tone, Callback, Lift the handset when you are called back
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4187 Plus specifications

The Ericsson 4187 Plus is a state-of-the-art telecommunications receiver designed for optimal performance in challenging environments. This advanced device caters to various applications, primarily in field operations, providing reliable communication capabilities in remote or demanding locations.

One of the standout features of the Ericsson 4187 Plus is its robust design. Built to withstand extreme weather conditions, it operates efficiently in a wide temperature range. This durability ensures that users can rely on the device for prolonged periods in the field without concerns about equipment failure due to environmental factors.

The receiver supports multiple frequency bands, enhancing its versatility for different communication requirements. This feature makes the Ericsson 4187 Plus suitable for a range of applications, including disaster recovery, military operations, and emergency response situations. With its ability to seamlessly switch between different networks, the device ensures consistent connectivity even when moving between coverage areas.

In terms of technology, the Ericsson 4187 Plus incorporates advanced digital signal processing capabilities. These capabilities provide clearer audio quality and reduce background noise, which is crucial in dynamic environments where clear communication is vital. The receiver is also compatible with various communication protocols, allowing it to connect effortlessly with existing telecommunications infrastructure.

Another significant characteristic of the Ericsson 4187 Plus is its user-friendly interface. The device features intuitive controls and a clear display, enabling users to navigate its functionalities with ease. This design consideration is particularly important for field personnel who may need to operate the device under pressure.

Battery life is another critical aspect of the Ericsson 4187 Plus. Designed for extended use, the device boasts a long-lasting battery that can endure lengthy missions without frequent recharging. Additionally, it offers energy-efficient modes that optimize power consumption based on usage patterns.

Overall, the Ericsson 4187 Plus stands out as a leading telecommunications solution, combining durability, advanced technology, and user-friendliness. Its ability to deliver reliable communication in various scenarios makes it an invaluable tool for professionals operating in remote or challenging conditions.
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