CXAPN Command - Cellular APN Configuration

Configure the Access Point Name (APN) to establish data connection with the GPRS/LTE cellular network.

What is it used for?

Use case	Description
📶 Internet connection	Establish cellular data connectivity
🔄 Carrier change	Configure APN when changing SIM
🌍 International roaming	Adjust APN for use in other countries
📱 Dual SIM	Configure different APN for each SIM

Commands

Configure


SCXAPxhost,username,password

Query


QCXAPx

Response


RCXAPxhost,username,password

Parameters

Parameter	Description	Values
x	SIM index	`N` or `0` = SIM0, `1` = SIM1 (Dual SIM)
host	Carrier APN name	Text (e.g.: `internet.ctimovil.com.ar`)
username	Authentication username	Text or empty if not required
password	Authentication password	Text or empty if not required

Incorrect APN = No connectivity. Always verify the correct APN with your carrier before configuring.

Carrier Configurations

Argentina

Carrier	Command
Claro	`>SCXAPNinternet.ctimovil.com.ar,,<`
Movistar	`>SCXAPNinternet.gprs.unifon.com.ar,wap,wap<`
Personal	`>SCXAPNgprs.personal.com,,<`

Mexico

Carrier	Command
Telcel	`>SCXAPNinternet.itelcel.com,,<`
AT&T	`>SCXAPNweb.attmex.mx,,<`
Movistar	`>SCXAPNinternet.movistar.mx,,<`

Chile

Carrier	Command
Entel	`>SCXAPNimovil.entelpcs.cl,entelpcs,entelpcs<`
Claro	`>SCXAPNbam.clarochile.cl,,<`
Movistar	`>SCXAPNweb.tmovil.cl,web,web<`

Colombia

Carrier	Command
Claro	`>SCXAPNinternet.comcel.com.co,,<`
Movistar	`>SCXAPNinternet.movistar.com.co,movistar,movistar<`
Tigo	`>SCXAPNweb.colombiamovil.com.co,,<`

Dual SIM Usage

For devices with Dual SIM (Smart IoT):

Configure SIM0 (primary)


>SCXAP0internet.ctimovil.com.ar,,<

Configure SIM1 (backup)


>SCXAP1internet.gprs.unifon.com.ar,wap,wap<

Query both SIMs


>QCXAP0<
>QCXAP1<

Notes

If the carrier does not require authentication, leave username and password empty: ...apn,,<
Verify correct APN with the cellular carrier
Incorrect APN prevents data connectivity

Compatibility

💾Firmware:v1.00.00

SPLegacy

ULLegacy

MTLegacy

C3Legacy

C5Legacy

SP-IOT

SM-IOT

ZE-IOT