An instrument that can hold dozens of SIM cards at the same time. After connecting to a computer, you can make phone calls and other operations. What is its name?

Hello, you should be talking about the central SIM card pool device.

Detailed information? Basic parameters

The SIM card management device (SID) has 32 or 256 test card slots, and can automatically obtain the IMSI, MSISDN, and SMS center in the test card Number and other information, it can support 32 or 256 SIM cards to be remotely powered on at the same time. ?

Details

Cooperating with the scheduling of the management center and the resource request of the remote dial test module, the system can transmit the simulation information of any SIM card to Remote dial test module (RTD). When the simulated SIM card is moved from one RTD to another, there is no need to make any physical location changes. Quick switching of SIM cards can be easily achieved to meet the needs of dialing and testing work in different areas.

Design advantages?

Centralized management

All test SIM cards are centralized in SID for unified management, and support stack interconnection of multiple devices?

Unified Scheduling

Cooperating with the scheduling of the management center and the resource request of the remote test module, the system can transmit the simulation information of any SIM card to the remote test module through LAN/?WAN? RTD).

SIM card reuse

When the simulated SIM card is moved from one RTD to another RTD, there is no need to make any changes in physical location, thus achieving remote centralized testing without the need for manual testing. SIM card replacement on site. ?

Working principle?

Performance characteristics?

1) Support remote booting of 32 or 256 test cards;

2 ) Using low-power hardware and embedded Linux-2.6.16? operating system, the product has the characteristics of low power consumption and low heat generation;

3) Provides a test card physical interface that complies with ISO7816 standards, ?Compatible with SIM, R_UIM, and U_SIM cards on the market that comply with ISO7816 standards;

4) The physical interfaces of each test card adopt a modular design and are independent of each other. The failure of a certain module will not affect the normal operation of other modules, and the faulty module can be maintained and updated without affecting the work of the system;

5) The drawer-type card slot design is used to facilitate SIM replacement. card;

6) Automatically check the changes of the test card and notify the system of the latest test card update in real time;

7) Provide MSISDN number query function for each slot;< /p>

8) Provide SIM card status indicator light, LCD display, and operation buttons. The SID working status can be displayed on the front panel screen, which is easy to operate and clear;

9) Provided in the software Automatic reset function in case of system failure;

10) Provide Ethernet interface to realize remote retrieval and exchange of data.