[https://wiki.teltonika-networks.com/wikibase/images/2/2e/Quectel_EC25EC21_AT_Commands_Manual_V1.2.pdf#page=12 2.2 AT+GMI Request Manufacturer Identification - page 12 ] | [https://wiki.teltonika-networks.com/wikibase/images/2/2e/Quectel_EC25EC21_AT_Commands_Manual_V1.2.pdf#page=12 2.2 AT+GMI Request Manufacturer Identification - page 12 ] |