Operating instructions
TransTel TD-1648i / TDS-600 Programming Manual 
71
Enhanced Protocol 
Enhanced Protocol is a more sophisticated means of integration with most voice mails. Its use is preferable to 
that of the integration of 05-10 in most cases. Within the enhanced protocol the TD-824i defines specific types of 
calls. Depending on the application and the type of voice mail, this allows for the maximum flexibility in the 
processing of calls. Each digit string will be unique to the type of call and the user. 
The format is as follows: 
  1 + extension number = Call Forwarding All Calls 
  2 + extension number = Call Forward Busy 
  3 + extension number = Call Forward No Answer 
  4 + extension number = Direct Call to Voice Mail (Auto Login) 
  5 + extension number = Call Record 
  6 + extension number = Recall to Voice Mail 
  7 + CO Trunk Number = Incoming CO Call 
  9# + extension number = Direct to Mailbox (Take A Message) 
In the case of codes 1+ through 6+ and 9#+ the actual string will be the identifier digit plus the actual extension 
number. 
Systems using two digit numbering will send a total of three digits (identifier plus 2 digit extension number). 
Systems using three digit numbering will send a total of four digits (identifier plus 3 digit extension number). 
Systems using four digit numbering will send a total of five digits (identifier plus 4 digit extension number). 
If the Incoming trunk indentifier is enabled in the TD-824i on Form 05-12-05 the dial string will be 7+ a two digit 
trunk number, so an identifier for trunk 1 will be 701, trunk 2 is 702 and so on. 
Answer Digit When a called station answers the System will play [DTMF A] to the voice mail port. 
Busy Digit. When a called station is busy the system will play [DTMF B] to the voice mail port. 
Disconnect Digit. The system will play [DTMF C] when an inside station disconnects or when a V/M is 
connected to a CO trunk which receives polarity reversal or Loop Disconnect. 
These 3 functions will considerably speed up the operation of the V/M as it will not have to wait to listen to tones 
to see what is happening with calls. 
Answering Machine Operation 
When activated this function allows the caller to set call forward to the Voice Mail as usual but then monitor calls 
to the Voice Mail from his key phone (on hook) and if they wish can lift the handset and take the call back from 
the Voice Mail. To enable the user presses [SPK] [7][7][3][1] and to disable presses [SPK] [7][7][3][0]. You 
may have a button on your telephone programmed for Answering Machine Emulation. If so, Press the Answering 
Machine button. It will light up, indicating your telephone is in Answering Machine Mode. To remove from 
Answering Machine Mode, press the Answering Machine button again. The light will extinguish, indicating your 
exit from Answering Machine Mode. 
Record Function 
This function is dependent on the Recording Unit being capable of inserting the recording tone to alert the caller 
they are being recorded. To record it is necessary for the Key phone to have a [RECORD] key which is FN 48 . 
During a call the STN presses the [RECORD] button and the Voice Mail will answer if a port is available and the 
system will send the Protocol 15 + STN NO + STN No. 
Direct To Voice Mail 
Direct to Voice Mail allows a station to place another caller directly in a user’s mailbox without the need to dial 
special codes. A station user presses the “Transfer to Voice Mail Key” and then either dials the extension user’s 
number or presses their DSS button. The call is immediately routed to their voice mail box and their greeting 
without the need to transfer to a station and allow forwarding to take place. Assign FN:25 to a key (Form 07-
group-key) for the phones you want. 










