| [[image:Declaration of IMEI assignment, Quectel EC21-AU, Quectel EC21-EC, Quectel EG91 2019-11-08.png|thumb|left|300px|Declaration of IMEI assignment, Quectel EC21-AU, Quectel EC21-EC, Quectel EG91 2019-11-08]] | | [[image:Declaration of IMEI assignment, Quectel EC21-AU, Quectel EC21-EC, Quectel EG91 2019-11-08.png|thumb|left|300px|Declaration of IMEI assignment, Quectel EC21-AU, Quectel EC21-EC, Quectel EG91 2019-11-08]] |