BT SMS manual Using the telephone, Call timer, Making and ending calls

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

Using the telephone

To switch the handset power on and off

Press and hold the GREEN PHONE button until after the display check sequence has happened and only the battery icon is displayed.

If you release the button before this has happened, the handset will remain switched off.

Press and hold the RED PHONE button to switch the handset off.

Call timer

Your handset will automatically time the duration of all external calls. The handset display shows the call duration both during your call and for one second after it is complete.

To end a call

Press the RED PHONE button.

Making and ending calls

To make an external call

Press the GREEN PHONE button.

The display shows the symbol. Dial the number.

Preparatory dialling

First enter the number to be dialled. The number is shown in the display. (If you make a mistake press C to remove the incorrect digit).

If you have entered the number correctly, press the GREEN PHONE button to dial the number.

To receive a call

Press the GREEN PHONE button to answer the call.

To adjust the earpiece volume

You can adjust the volume during a call and whilst using the phone on handsfree.

Press the button to increase the volume.

Press the button to decrease the volume.

The display shows the current volume level.

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Contents On-Air 2100 SMS user guide ~ Edition 3 ~ 29th July ’02 ~ BT On-Air 2100 SMSBase At a glanceHandset This guide Setting up Using the telephoneMenu Structure Intercom Directory Redial Silent mode Ans machine Menu Structure For your records Safety informationIntroduction Unpacking your BT On-Air 2100 SMSPlan the location Setting upConnect the power supply and switch on Charge the battery in the handset for at least 16 hours Battery low warningAttach the belt clip Changing your handset fasciasMaking and ending calls Using the telephoneCall timer Name and number directory To switch secrecy on/offTo insert a pause when storing a number in the directory HandsfreeEntering names To edit and delete directory numbersCaller Display Paging handsetsInternal calls To enter the calls list Calls listAll calls Redial listTo adjust ringer melody and volume Handset settingsSilent mode Keyguard To switch keyguard onTo switch keyguard off Alarm clockEconomy mode Press the OK button to confirm To turn the alarm offProgram buttons To change your System Code Base settingsTo adjust the base ringer melody and volume To change base station priority To set the timeUse the UP button to scroll to Base Using additional handsets and bases Using additional handsets and basesRegistering additional handsets Base HandsetNumber you save becomes the handset’s name ie. ‘Handset 1’ To de-register a handset from the baseTechnical information GuaranteeGeneral information To change the network connection Switchboard compatibilityRecall To activate RecallDialling Switchboard external line access codeTo set the external line access code Page 122 mm Wall mountingIndex REN

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.
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