To accept your phone’s programming:

1You will receive a Net Alert with the message New Browser Message – Receive Programming Info.

2Press A under GOTO.

3You are prompted to accept changes to your Phonebook. Press A under OK.

4A confirmation screen displays. Press A under OK.

5You are prompted again to accept changes to your Phonebook. Press A under OK.

6A confirmation screen displays. Press A under OK.

7Press e to return to the idle screen.

Subscriber Identity Module (SIM) Card

Your phone comes with a built-in level of security protection through the use of the SIM card. The SIM card stores all your Phonebook information and your Nextel account identification information. Since this information is stored on the SIM card and not in your phone itself, you can remove the information by removing the SIM card.

The SIM card is located in the SIM card holder on the back of the phone, underneath the battery. You can verify that the SIM card is in place by removing the battery and viewing the SIM card through the SIM card cover.

See “Removing/Inserting the SIM Card” on page 25 for information on locating the SIM card. If there is no SIM card in your phone, notify your Nextel Authorized Representative.

NOTE: Except for making emergency calls, your phone will not function without the SIM card.

SIM Card Personal Identification Number (PIN)

To prevent unauthorized use of your account, you can protect your SIM card by enabling the SIM PIN security feature. With the SIM PIN security feature enabled, you must enter your PIN each time the phone is powered on. You can change or disable your PIN if desired.

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Nextel comm i58sr manual Subscriber Identity Module SIM Card, SIM Card Personal Identification Number PIN

i58sr specifications

The Nextel i58sr was a standout device in the realm of communication technology, primarily catering to business and professional users. Released as part of Nextel's ruggedized phone lineup, the i58sr was designed with durability and functionality in mind, making it a reliable choice for users in demanding environments.

One of the defining features of the i58sr was its sturdy design. The phone was built to withstand tough conditions, with a rugged exterior that offered resistance to shocks, vibrations, and water. This made it ideal for users who worked in construction, outdoor activities, or any field where accidents and rough handling were a possibility.

The i58sr boasted a compact and lightweight form factor, making it portable and easy to handle. Its ergonomic design included a comfortable grip, essential for prolonged use in the field. The device also featured a clear display that provided essential information at a glance, ensuring that users could easily navigate through applications and features even in bright sunlight.

A significant highlight of the Nextel i58sr was its push-to-talk capability, which allowed for instant communication with other Nextel users. This feature enabled users to connect with team members quickly, facilitating coordination and enhancing productivity, especially in high-paced work environments. The phone also supported traditional voice calls, ensuring versatility in communications.

Technologically, the i58sr utilized Nextel's iDEN network, combining radio communication and cellular service to deliver unique features like two-way radio capability. This hybrid technology enhanced the range of communication options available to users, allowing for seamless transitions between direct radio and phone calls.

In terms of battery life, the i58sr performed admirably, providing extended usage capabilities that were crucial for users often away from power sources. This reliability was further complemented by the device's long-standing reputation for functionality, which included features like programmable buttons for quick access to frequently used functions.

In summary, the Nextel i58sr was a significant player in the domain of rugged communication devices. Its combination of durability, push-to-talk capabilities, and a reliable power source made it a preferred choice for professionals in various industries. By blending traditional voice calls with advanced push-to-talk technology, it stood out as an essential tool for effective communication in challenging environments.