System Radio:
The following steps are required to dial these numbers:
1.Follow the procedure in Sending A Telephone Interconnect Call (Trunked Mode Only) to establish a connection to the telephone system or consult the system administrator for the procedure to access a dial tone on the trunked or conventional system.
2.Overdial numbers are transmitted using either method as follows:
METHOD 1: Press and hold PTT while entering the overdial number sequence from the keypad. This method sends DTMF tones during individual, telephone interconnect., trunked group or conventional channel calls. Anytime the PTT button is pressed and held, the keypad is enabled for DTMF entry.
METHOD 2: Press * to enter the overdial
select/entry mode and follow the selection mode rules to call up a stored number from the phone list or
to direct enter the overdial digits. 
turns on. Press PTT to send the overdial sequence once. If the number needs to be transmitted again it must be selected or entered again (this
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