How to Configure APN for Quectel EC21-KL Module Using Cambodian Local SIM Cards

IoT Modules
1

Hello everyone,

I am conducting tests with the Quectel EC21-KL module and plan to use it in Cambodia with local SIM cards. I would like to ask for guidance on how to properly configure the APN settings for this module when using SIMs from the three major Cambodian mobile network operators.

Could you please provide the APN details for the following Cambodian carriers?

  1. Cellcard
  2. Metfone
  3. Smart Axiata

Additionally, I would appreciate instructions or example AT commands for changing the APN on the EC21-KL module to accommodate these networks.

For reference, I understand that the typical APN setting command is:

AT+CGDCONT=1,"IP","<APN_NAME>"

but any further details or best practices for stable connectivity in Cambodia would be very helpful.

Thank you in advance for your support.

Best regards.

2

example1:

AT+CGDCONT=1,“ipv4v6”,“ctnet” // to configure APN
OK
or
AT+QICSGP=1,3,“private.vpdn”,“xmswg@xmswgwyld.vpdn.fj”,“xmsw5907588”,3
// to configure APN
OK
AT+CFUN=1,1 // reboot
OK
//If the terminal registers to the network, the core network needs to perform APN verification; at this time, the APN configuration is carried out. The UE may have already completed network search and initiated the registration request. At this point, the configured APN may not be able to be transmitted to the core network for verification. Thus, the network registration may be rejected. Querying the network status will return +CEREG: 0, 3; ① You can configure according to Scheme 1 and then restart (AT + CFUN = 1, 1), and re-initiate network entry and registration; ② You can also execute example 2 as follows:
example 2:
AT+CFUN=0 // enable minifunction
OK
AT+CGDCONT=1,“ipv4v6”,“ctnet” //to configure APN
OK
或者
AT+QICSGP=1,3,“private.vpdn”,“xmswg@xmswgwyld.vpdn.fj”,“xmsw5907588”,3
//to configure APN
OK
AT+CFUN=1 // enable all function
OK

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