Supplementary Service Function; Definition - AOpen ISDN SOHO Router User Manual

12. Supplementary Service Function

A
B

12.1 Definition

AT$CI1
AT$CS1
AT$CS2
AT$CS3
LIT Local incoming
tone
Busy tone
BT
DT Dial tone
RBT Ring-back tone
IRBT Inner ring-back
tone
Inner ring
IR
Incoming ring
ICR
HT Holding tone
ISDN Router Manual V.1.1
TA1 / Router1
Set inner communication enable
No Network/Local supplementary service function provided
Only Network supplementary service function provided
Only Local supplementary service function provided
400Hz tone
0.125sec on, 0.1sec off, 0.125sec on, 0.1sec off,
3.55sec off repeated
400Hz tone
0.5sec on, 0.5sec off continually
400Hz tone
Continual
Receive from Network ISDN switch
60ms on, 50ms off, 60ms on, 3250ms off,
repeated
400 HZ tone
20Hz ring signal
When detects an inner communication and
sending inner ring signal to TEL-A/B
Ringing period is same as IRBT
20Hz ring signal
When accepts an incoming call and sends ring
signal to TEL-A/B
Ringing period is 1sec on, 2sec off repeated
Send by Network ISDN switch
TA2 / Router2
ISDN
79
C
D