request help configuring obi110 line port for DR POTS line
LPDR:
Hi,
I'm new to writing in this forum but have been reading it for quite a while. I'm hoping someone can help with the problem I'm having.
I'm in the Dominican Republic and am using an OBi110 2.8 1.3.0-2824. I have a cordless phone from the US plugged into the phone port and have SP1 and SP2 configured. VoIP calls work fine, in and out. When we needed to make or receive a POTS call, I would plug the phone into the Claro DSL wall jack with a filter.
Everything worked fine like that. But now we're using both VoIP and the POTS so I've been trying to configure the OBi110's line port. I've experimented with many setting but I can't make or receive a call with the line port. Here are some details after putting the line port back to default settings and connecting the line port to the wall jack with a DSL filter:
1) Line Port Status shows State is Ringing even though there's no incoming call.
2) Line Port Status shows TipRingVoltage fluctuating between -71 and +74 V every fraction of a second.
3) dialing straight out results in a busy signal.
4) dialing #results in silence and then a disconnect sound following by a dial tone. Further dialing just results in a dial tone.
5) calls to the POTS number do not ring the ATA. The caller hears several rings and then voicemail.
6) Upon powering off the ATA but leaving all other connections as is, both incoming and outgoing POTS calls are handled as expected.
I haven't tried the line port of this ATA in other countries so the only reference point I have is that #6 indicates that the phone-ATA-filter-wall connection is correct and all components are functional aside from the ATA.
Any suggestions on how to configure the line port or determine if it is defective?
Thanks.
drgeoff:
OBi110 hardware version 2.8 has a relay which mechanically connects the LINE and PHONE ports when the device is unpowered. Therefore your #6 doesn't really test any of the OBi's internals except for the connections between that relay and the jacks.
If you look at the TipRingVoltage with the telco line unplugged do you see the expected zero?
LPDR:
Yes, with the telco line unplugged, the Line Port Status shows expected values:
Line Port Status -> State : On Hook
Line Port Status -> TipRingVoltage : 0 V
Timon:
Quote from: drgeoff on June 01, 2015, 09:25:20 am
OBi110 hardware version 2.8 has a relay which mechanically connects the LINE and PHONE ports when the device is unpowered.
Did they take this out of later hardware versions? I have version 3.4 and when I pull the power the line jack doesn't passthrough to the Phone jack.
SteveInWA:
It sounds to me like a POTS telephone wiring error of some sort, that could likely fry your OBi if you can't diagnose it.
Do you have access to a voltmeter and / or a telephone line tester (a dongle with red and green LEDs)?
If so, then unplug the POTS/DSL line from the OBi. Either open up the RJ=11 wall jack, or use a RJ-11 cord that can be cut and the wires stripped for testing. With no equipment plugged into the the circuit, it should read about 48 volts, plus or minus a few volts. If a phone on that circuit is plugged in and off-hook, then the voltage should drop to around 12V. The only time it should ever read in the 70V-100VAC range would be if it is ringing. If it consistently reads above the 48VDC range with nothing connected other than a voltmeter, then contact your telephone company (Claro), as something's wrong. Plug a DSL filter into the wall jack. Plug your cordless phone into the DSL filter. Does it work normally (dial tone, places and receives calls, rings)?
RE: phone line relay, yes, the relay was removed from later versions as a cost-cutting measure.
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