For example: Agilent E4440A or Anritsu 68369
Keysight / Agilent Communications
Keysight / Agilent 37719A
OmniBER 719A Communications Performance Analyzer

Manufacturer: Keysight / Agilent
Keysight / Agilent 4934A
Transmission Impairment Measuring Sets: 110kHZ TIMS

Manufacturer: Keysight / Agilent
Keysight / Agilent 8922M
GSM Mobile Station Test Set for Manufacturing

Manufacturer: Keysight / Agilent