SIM Selection

Rinho devices with Dual SIM manage up to 2 SIM cards simultaneously, allowing carrier switching based on coverage, country, or network availability.

What is it for?

Use case	Description
🌍 Cross-border operation	Automatically switch SIM when crossing countries
📶 Coverage redundancy	Use SIM2 when SIM1 loses signal
💰 Cost optimization	Different plans based on geographical zone
🔄 Automatic failover	Transparent switching during carrier failure
🏢 Multiple clients	SIM1 for client A, SIM2 for client B

Compatible devices: Smart IoT C3, Smart IoT C5 and other models with Dual SIM slot.

Available Commands

📱SIM Command

Active SIM selection and query

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⚙️CXSIM Command

Automatic SIM switching configuration

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Operation Modes

Mode	Description
🔵 Fixed SIM1	Always uses SIM1
🟢 Fixed SIM2	Always uses SIM2
🔄 Auto	Automatically switches based on coverage
🌍 By country	Switches based on MCC (country code)

Configuration Example


// Query active SIM
>QSIM<
 
// Force SIM1 usage
>SSIM1<
 
// Force SIM2 usage
>SSIM2<
 
// Switch SIM when detecting country change
>SRL70E;TRG=MC00+;ACC={SSIM2}<    // When entering country X, use SIM2
>SRL71E;TRG=MC00-;ACC={SSIM1}<    // When leaving country X, return to SIM1

Command	Function	Description
COPS	Carrier	Manually select carrier
MC	MCC Country	Detect country change
CXSIM	SIM Config	Advanced SIM parameters