Need help to setup PSTN for OBI110
Stewart:
This is really puzzling. If you manually take the line off hook by pressing #, I don't see why it should be any different electrically, whether the line is idle or you are answering between rings, unless perhaps the CO is doing something strange, or the polarity is opposite and there is a hardware problem in the OBi. See whether disabling DetectCPC makes any difference.
Confirm that from idle, when you pick up the Phone port and press #, you hear PSTN dial tone and it does not drop within a few seconds. On the Phone and Line Status page, report the values of LoopCurrent and TipRingVoltage, both when on hook, and after pressing # and hearing PSTN dial tone.
Quote from: Qnewbie on May 26, 2012, 08:47:30 am
It picks up the landline but drops after a few seconds(or less). EnableLINEPortBargeIn is checked, the same result holds. Strange that there is not log in the call history.
Does the cell phone ringback tone stop and you have an audio path for those few seconds? Again, report the values of LoopCurrent and TipRingVoltage, both between incoming rings, and one second after attempting to answer by pressing #.
Qnewbie:
Quote from: Stewart on May 26, 2012, 11:57:48 am
This is really puzzling. If you manually take the line off hook by pressing #, I don't see why it should be any different electrically, whether the line is idle or you are answering between rings, unless perhaps the CO is doing something strange, or the polarity is opposite and there is a hardware problem in the OBi. See whether disabling DetectCPC makes any difference.
DetectCPC is disabled already.
Quote
Confirm that from idle, when you pick up the Phone port and press #, you hear PSTN dial tone and it does not drop within a few seconds. On the Phone and Line Status page, report the values of LoopCurrent and TipRingVoltage, both when on hook, and after pressing # and hearing PSTN dial tone.
From idle and pick up the Phone port and press #, I hear PSTN dial tone but it drop to busy tone within a few seconds.
Quote
Does the cell phone ringback tone stop and you have an audio path for those few seconds? Again, report the values of LoopCurrent and TipRingVoltage, both between incoming rings, and one second after attempting to answer by pressing #.
The cell phone ringback tone stops and I can hear the audio for those seconds.
Idle:
Port Statushelp
Parameter Name Phone Port Status
State On Hook
LoopCurrent 0 mA
VBAT 57 V
TipRingVoltage 45 V
LastCallerInfo ''
Line Port Status
On Hook help
0 mA help
help
-49 V help
-- help
Ringing:
Parameter Name Phone Port Status
State On Hook
LoopCurrent 0 mA
VBAT 57 V
TipRingVoltage 45 V
LastCallerInfo ''
Line Port Status
Ringing help
0 mA help
help
-49 V help
-- help
Before pickup:
Parameter Name Phone Port Status
State Off Hook
LoopCurrent 20 mA
VBAT 17 V
TipRingVoltage 6 V
LastCallerInfo ''
Line Port Status
Ringing help
0 mA help
help
-50 V help
--
Pickup:
Port Statushelp
Parameter Name Phone Port Status
State Off Hook
LoopCurrent 20 mA
VBAT 17 V
TipRingVoltage 6 V
LastCallerInfo ''
Line Port Status
Off Hook help
19 mA help
help
6 V help
--
Stewart:
If you haven't already done so, try disabling DetectDisconnectTone.
Are you running the latest firmware?
Otherwise, I am thinking that since your PSTN shows pretty standard voltage and current values, an out-of-box OBi should be able to pass an incoming PSTN call to the Phone port (except for caller ID, which you don't have anyhow). So, you could back up your configuration, do a factory reset, and test. If incoming PSTN calls still fail, you can restore the config and we'll continue from there. But if they work, you can then manually re-enter the config, one section at a time, to learn what setting is causing the trouble.
Quote from: Qnewbie on May 26, 2012, 12:32:15 pm
From idle and pick up the Phone port and press #, I hear PSTN dial tone but it drop to busy tone within a few seconds.
Confirm that it drops sooner than expected, e.g. the PSTN will normally play 20 seconds of dial tone, but through the OBi, it drops after 5 seconds. If you access the PSTN line by pressing # and then dial a number, does that avoid the drop? If so, it sounds like some sort of (unwanted) disconnect tone detection is taking place. But if not, that seems strange, since you stated that normal outbound PSTN calls are ok (I assume by dialing **8 or having PSTN as Primary Line).
Qnewbie:
Quote from: Stewart on May 26, 2012, 01:03:44 pm
If you haven't already done so, try disabling DetectDisconnectTone.
Box unchecked already.
Quote
Are you running the latest firmware?
1.3.0 (Build: 2711)
Quote
Otherwise, I am thinking that since your PSTN shows pretty standard voltage and current values, an out-of-box OBi should be able to pass an incoming PSTN call to the Phone port (except for caller ID, which you don't have anyhow). So, you could back up your configuration, do a factory reset, and test. If incoming PSTN calls still fail, you can restore the config and we'll continue from there. But if they work, you can then manually re-enter the config, one section at a time, to learn what setting is causing the trouble.
Reset configuration, it still fails. :( After I press #, "there is no service available to complete your call".
One thing, the voltage at the phone port differs:
Parameter Name Phone Port Status
State Ringing
LoopCurrent 0 mA
VBAT 75 V
TipRingVoltage -18 V
LastCallerInfo ''
Line Port Status
Ringing help
0 mA help
help
-49 V help
-- help
Another incoming call shows:
Ringing:
Parameter Name Phone Port Status
State Ringing
LoopCurrent 1 mA
VBAT 79 V
TipRingVoltage 59 V
LastCallerInfo ''
Line Port Status
Ringing help
0 mA help
help
-49 V help
-- help
Why the TipRingVoltage varies so much?
Stewart:
The Phone port voltage discrepancy would be normal, if you refreshed the page when the port was in the active part of a ring cycle and just happened to catch it at that particular voltage. During the silent phase of ringing the Phone port, my OBi shows e.g. State: Ringing, VBAT: 57V, TipRingVoltage: 45V. Your previous capture showed State: On Hook, which seems to indicate that the OBi thought that ringing had ceased (call abandoned). I don't know what timeout OBi uses to determine that (there doesn't seem to be a setting in the UI), but since both Sweden and US have a four-second off period, that shouldn't be an issue. I also considered the possiblity that the ring detection might somehow be unreliable, but even if the OBi considered the call to have been abandoned, pressing # should still pick up the line and work like a normal answer.
Do you have DSL or other special service on this PSTN line? If so, is there a proper filter between line and OBi? Do you have a security system, fax or other device connected between the line and the OBi?
I'm starting to run out of ideas here. Do you have another source (e.g. ATA from another provider, analog PBX extension) that you could use to test the Line port of the OBi? Also, please answer the questions in my previous post relating to pressing # when the PSTN line is idle.
Navigation
[0] Message Index
[#] Next page
[*] Previous page