On-Air 2100 SMS user guide ~ Edition 3 ~ 29th July ’02 ~ 4641

To use your handset when the keyguard is on

Press the button until the is removed from the On box.

C OK

Press OK to confirm.

This temporarily switches off the keyguard allowing you to make a call.

Press the STAR button

C OK

Press the OK button to confirm.

Economy mode

If you receive an incoming call whilst the keyguard is on just press the GREEN PHONE button.

Note

The keyguard will then re-activate after one minute.

To switch keyguard off

COK

COK

COK

This feature enables you to extend the life of the battery by automatically switching the screen off if the phone has not been used for 30 seconds.

Press the UP or DOWN button to enter the Set menu.

Press the OK button to confirm.

Press the UP or DOWN button to scroll to Economy mode menu.

Press the OK button to confirm.

Press the button.

Press the OK button to confirm.

COK

COK

COK

Press the STAR button

Press the OK button to confirm.

Press the UP or DOWN button to display Set.

Press the OK button to confirm.

Press the UP or DOWN button to display Keyguard.

Press the OK button to confirm.

The display shows

To re-activate the screen press the

GREEN PHONE button.

Alarm clock

You can use your handset as an alarm clock. You must set the time before the alarm will work. To switch the alarm off when it is ringing, press any button on the handset.

The alarm will ring daily until the setting is turned off.

On



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BT SMS manual Alarm clock, Economy mode, To switch keyguard off

SMS specifications

BT SMS, or British Telecommunications Short Message Service, is a messaging service that allows users to send and receive text messages via mobile networks. This service has become increasingly popular due to its ease of use, reliability, and the ability to communicate in real time. BT SMS integrates various technologies, making it a crucial tool for both personal and professional communication.

One of the main features of BT SMS is its reliability. The service operates on established mobile network infrastructure, ensuring messages are transmitted quickly and efficiently. Additionally, SMS is designed to deliver messages even when mobile data services are unavailable, making it an essential mode of communication in areas with limited connectivity.

Another significant characteristic of BT SMS is its wide compatibility. It can be used across various mobile devices, regardless of the operating system. This universality is further enhanced by the ability to communicate with different network providers, allowing users to send messages to anyone, anywhere, as long as they have a mobile phone.

BT SMS supports various multimedia messaging capabilities, such as sending images, videos, and emoji through MMS (Multimedia Messaging Service). This enriches the text communication experience, allowing users to convey emotions and visual information that plain text may not adequately express.

Security features are also integral to BT SMS. Messages are often encrypted during transmission, protecting users' privacy and ensuring that their conversations remain confidential. Additionally, users have the option to enable message delivery reports, which provide confirmation when a message is successfully delivered.

The technology behind BT SMS is based on a store-and-forward mechanism. When a message is sent, it is first stored in the network's SMS Center until it can be delivered to the recipient's device. This allows for smooth delivery even if the recipient's phone is switched off or out of coverage at the time the message is sent.

In conclusion, BT SMS remains an essential communication tool with its reliability, compatibility, multimedia capabilities, security features, and robust technology. Whether for personal interactions or professional engagements, BT SMS continues to evolve, catering to the needs of users in a fast-paced, digital world. Its simplicity and effectiveness ensure that it remains relevant in an era dominated by various messaging applications.