User Guide

ISDN Router Manual V.1.1
80
Waiting first dial digit time
♦ After TEL-A/B off hook, sends DT to TEL-A/B
♦ If after 25 seconds still did not receive any
dialing digit, send BT to TEL-A/B
Flash signal recognition time
♦ Detects Flash-Hook signal from TEL-A/B
♦ If 0.3sec <= Flash-Hook time <= 1 sec then it is
a correct Flash signal
On-Hook signal recognition
time
♦ Detects a Flash-Hook signal from TEL-A/B
♦ If Flash-Hook time >=2.2 sec then it is a correct
On-Hook signal
Ideal mode
♦ On-hook, disconnected and no any event occurred to the
TEL-A/TEL-B
Talk mode
♦ Off-Hook and talking with only one other party
12.2 Making an Outgoing Call
Case No Representation
0
When A is in the idle mode
1. A off-hook
2. A hears TA’s DT
3. A dials the telephone number of C
4. TA2 rings C (if C is in idle mode, TA2 sends ICR to C)
5. A hears Network’s RBT
6. C off-hook (TA2 stops ICR)
7. A talks to C (A is in talk mode with C)
1
When A at Case 0, step 3
1. If C is busy
2. A hears TA’s BT
3. A on hook
4. A returns to idle mode
1.1
When A at Case 1, step 2
1. A flash
2. A go to Case 0, step 2
2
When A at Case 0, step 2/3/4/5/6
1. A on-hook
2. A is disconnected
3. A returns to the idle mode
3
When A at Case 0, step 4
1. A flash
2. TA2 stops to ring C
3. A go to Case 0, step 2
4
When A at Case 0, step 6/7
1. A flash
2. C is disconnect
3. C hears Other TA’s BT
4. A go to Case 0, step 2
5
When A at Case 0, step 7 (talk mode)
1. A on-hook
2. C hears Other TA’s BT
3. A is disconnected