Please refer to chapter 6.3.1
CO
line
Answer
Supervision
When set One-stage mode, FXO billing signal
transmissions:
- answer the line without delay: As soon as receive
INVITE/Setup signal, system give a 200 OK/Connect
response at once.
- answer after receiving reversal signal: when receive
INVITE/Setup signal, system send signal to pstn side and
does not reply 200 OK/Connect immediately, but answer it
after detecting reversal signal from PSTN side.
- answer delay, after it get invitee message, it send call to
pstn first, and after the delay time, it send response to the
voip side.
- answer after detect voice activety. after it get invitee
message, it send call to pstn first, and after it detect the
voice activeity, it send response to the voip side.
For detailed information please refer to section
6.3.1.1
.
Normal
Delay answer time
The delay time before it answer the calls. The range is 1-60s 6
Regenerate
DTMF
Digit Relay
Set the time delay from FXO get connected to starting to
send number when regenerated number is sent from FXO to
PSTN. The range is: 0 ~ 5000ms.
Adjust this parameter, so that FXO may only start to send
number after the switch of PSTN side is ready.(begin to
send dial tone)
1500
Regenerate
DTMF
Digit Interval
Set the transmitting interval between DTMF numbers, when
regenerate the number from FXO to PSTN.
- 0ms
- 200ms
- 400ms
- 600ms
- 800ms
- 1000ms
For the switch of PSTN, which is not very sensitive to DTMF
signal detection, you can improve interval of DTMF
regeneration number through adjusting this parameter.
0
FXO Configuration
Operational
Loop
Current Min
Set the minimum loop current in which FXO can work
normal. The range is:
- 10mA
- 12mA
- 14mA
- 16mA
10
TIP/RING
Voltage
Adjust
Working voltage of DAA pin of FXO chip, supplied by feed of
TIP and Ring. The range is:
- 3.1V
- 3.2V
- 3.35V
- 3.5V
3.5
Min Ring Frequency
Detected
Set the min ring frequency of measurable ring signal, which
should be not less than 4 Hz
10
Max Ring Frequency
Detected
Set the max ring frequency of measurable ring signal, and it
must be equivalent or more than Min Ring Frequency.
83
FXO Port Impedance
Set impedance of FXO external circuit. You can avoid the
voice quality problem which caused by unmatching
impedance through adjusting this parameter.
- 600ohm
- 900ohm
- (750ohm || 150nF)
- (820ohm || 120nF)
- (620ohm || 310nF)
- (1050ohm || 230nF)
- (820ohm || 110nF)
200ohm
+
(680ohm
||
100nF)
Содержание MG3000-R
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