Yes
If
your radio firmware is before V1.54, you need to upgrade the Newest
firmware to achieve the DTMF. Only the V1.54 and the above V1.54 support
DTMF function.
0~9 -> DTMF dial number 0~9.
Menu -> A
Up -> B
Down -> C
Exit -> D
* -> E
# -> F
Press PTT and then dial your DTMF number.