Surprisingly enough.. The AnyTone 878UVii Plus does QC-2 Encode and Decode quite well.
The Hytera PD782 / PD682 / X1P / PD982 all do 2-tone sequential Encode and Decode VERY well.
and... The /\/\otorola XPR-7550e does a great job as well.
The AnyTone is dirt cheap for what it does and it does make a great PERSONAL radio, but I am just not sure I'd trust my life to it in a fire or emergency situation, whereas I WOULD trust any of the Hytera models or Motorola models.
The Hytera Portables and Mobiles (MD-782xxx) also have a "transpond" feature included.
If programmed properly and enabled, the radio can decode a mind-boggling array of any of (or multiples)
A+B A+C A+D or
B+A C+A D+A or
Long Tone A
Long Tone B
Long Tone C
Long Tone D
and... If "Transpond" is enabled, it will transmit back a defined QC2 tone set to indicate it received and decoded the page properly.
(ideal for remote site relay control and function control)