This standard specifies the technical requirements, test methods, reliability tests, signs and packaging of fixed automatic telephones. This standard is applicable to the pulse and dual-tone multi-frequency handset telephones connected to the public network analog connection Izl. Other multi-function terminals with handle functions can also be used as a reference, but other functions not specified in this standard should be referred to as required Standards are tested.
GB/T 15279-2002 history
2002GB/T 15279-2002 The specifications of automatic telephone set
1994GB/T 15279-1994 The specifications of automatic telephone set