<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
 def startDtmfReject():
 """ START DTMF REJECT Section 9.3.26"""

    a = TpPd(pd=0x3)
    b = MessageType(mesType=0x37)  # 00110111
    c = Cause()
    packet = a / b / c
    return packet