MC Command — Country Detection (MCC)

Configure triggers that activate when changing country via GSM network.

What is it for?

🌍 Main use cases:

🚗 Detect international border crossings
⚙️ Automatically change configuration by country
📊 Generate country entry/exit reports
🔄 Change SIM according to country operator
💰 Optimize roaming costs

MCC (Mobile Country Code) codes are international standards. Check the complete list of codes .

Commands

Operation	Syntax	Description
Configure	`SMCaabbb`	Assign MCC to index `aa`
Query	`QMCaa`	Read MCC from index `aa`
Query current network	`QMC` (no index)	Returns the actual MCC of the current cellular network, not a configured value
Response	`RMCaabbb`	Confirmation

Parameters

Parameter	Description	Values
`aa`	Trigger index	`00` to `07` (8 triggers)
`bbb`	Country MCC code	`000` = not assigned

South America MCC Codes

Country	MCC	Flag
Argentina	722	🇦🇷
Uruguay	748	🇺🇾
Brazil	724	🇧🇷
Chile	730	🇨🇱
Paraguay	744	🇵🇾
Bolivia	736	🇧🇴

Examples

Detection of entry to Uruguay


>SMC00748<    // Configure index 00 with Uruguay MCC
>SRL24E;TRG=MC00+;ACC={GTX00L;@TRM;TXT=URUGUAY ENTRY DETECTED}<
//           └─ When detecting entry (+) to country MC00

Country conditional (only report if in Argentina)


// Index 01 = Argentina
>SMC01722<
 
>SRL50E;TRG=IN00-;CND=MC01;ACC={GCQ00L}<
//                   └─ Only execute if in Argentina

Mercosur border control system


>SMC00722<    // Argentina
>SMC01748<    // Uruguay
>SMC02724<    // Brazil
>SMC03744<    // Paraguay
 
>SRL60E;TRG=MC00+;ACC={GCQ00H;TXT=ARGENTINA ENTRY}<
>SRL61E;TRG=MC01+;ACC={GCQ00H;TXT=URUGUAY ENTRY}<
>SRL62E;TRG=MC02+;ACC={GCQ00H;TXT=BRAZIL ENTRY}<

Query the current network’s MCC (no index)


>QMC<
>RMC722<    // Actual MCC of the current cellular network (Argentina), independent of any configured index

Use MC triggers as conditionals in rules to apply different logic depending on the country where the vehicle is located.

Usage in Rules

Usage	Syntax	Description
Entry trigger	`TRG=MCxx+`	When entering the country
Exit trigger	`TRG=MCxx-`	When leaving the country
Conditional	`CND=MCxx`	If in the country
Negated conditional	`CND=MCxx!`	If NOT in the country

Associated Signals

Property	Value
Signal	`MCaa`
Index	`00` - `07`
Conditional usage	✅ YES
Edges	`+` Entry, `-` Exit

Compatibility

💾Firmware v1.03.00

SPLegacy

ULLegacy

MTLegacy

C3Legacy

C5Legacy

💾Firmware v1.00.00

SP-IOT

SM-IOT

ZE-IOT