Operating instructions
TransTel TD-1648i / TDS-600 Programming Manual 
101
29-
XX
-03
-
ISDN
I
NCOMING 
C
ALL 
T
YPE
: 
This feature allows the user to set ISDN line to fit different incoming call types. 
0 = InBlock Sending. The ISDN Central Office will send “Extension Called Party Number” or “Extension Sub-
address Number” during the setup procedure. 
1 = Overlap Sending. The ISDN Central Office does not send “Extension Called Party Number” or “Extension 
Sub-address Number”  during  the setup procedure.  After the  setup  procedure has been  established, this 
information will be sent by Central Office. 
2 ~ 9 = MSN. System rings the extensions assigned in Program 01/Program 02 when there is an incoming 
ISDN call. 
29-
XX
-04
-
S
ET 
R
INGING 
T
ONE
: 
This feature allows each trunk to ring at DK telephone sets with its own individual ring frequency and override 
the frequency set by the user for all calls. 
0=Use station’s default ring  1-8=Use assigned trunk ring cadence 
29-
XX
-05
-
I
NCOMING 
C
ALL 
C
ONNECT
:
This feature allows either some or all stations which are ring assigned in Mode 01 or 02 to receive the audible 
ring signal when a trunk rings at the station. If the audible signal is disabled the station will still be able to 
answer a call by lifting the handset only, if they are ring assigned in Mode 01 or 02 
0=Ring All  1=Ring first station  2=Ring first two stations 
3=Ring first three stations  4=Ring first four stations  5=Ring first 5 stations 
6=Ring first 6 stations  7=Ring first 7 stations  8=Ring 8 stations 
9=Ring first 9 stations     
Example: If there are 12 stations programmed on Form 01-01 and 29-01-05 is set to a value of 5, the first five 
stations will ring, but all twelve stations will be able to access the incoming line simply by lifting the handset. 
29-
XX
-06
-
1A2
E
MULATION
: 
When an extension is connected to a trunk, another extension can make a conference by press the busy trunk 
button if 1A2 Emulation is available. The actual operation of this parameter is dependant upon interaction with 
Form 78-ST-03, described elsewhere in this manual. 
0=No Trunk Access  1=Access Conditional upon 78-STN-03 
The 1A2 Emulation status is shown below: 
29-xx-06  78-St-03  Status 
0  N/A  No access 
1  0  No access 
1  1  access with tone 
1  2  access with no tone 
Even if 1A2 Emulation status is enabled, the extension can temporarily disable 1A2 emuation by pressing 
Function key: [1A2 Emulation Privacy] – (FN:24 for DSS key in Form 07). When the extension sets 1A2 
Emulation Privacy Key, the key LED will light, and other extensions can't enter the call. The extension can press 
[1A2- Emulation Privacy] again to cancel 1A2 Emulation Privacy and turn the key LED off. 
Related System Programming Mode: 07, 29-TK-06, 78-ST-03 










