[https://wiki.teltonika-networks.com/wikibase/images/2/2e/Quectel_EC25EC21_AT_Commands_Manual_V1.2.pdf#page=16 '''2.7 AT+CGMR Request TA Revision Identification of Software Release - page 15'''] | [https://wiki.teltonika-networks.com/wikibase/images/2/2e/Quectel_EC25EC21_AT_Commands_Manual_V1.2.pdf#page=16 '''2.7 AT+CGMR Request TA Revision Identification of Software Release - page 15'''] |