[Hai-users] VoIP compatibility

[Dave Horoschak]

Do you know what the panel wants to see?

Metering right there, I get a solid 49.67v on hook, 11.35v off hook, and 
flashes in the 5-12v area for an incoming call.  Seems pretty good to 
me.  Yet, the panel reports a phone level of 0 for both on hook and off 
hook.  Only time I see a change is for incoming calls.

Seems like the panel isn't working right.
  - Dave

Pierre Metivier wrote:
> I have run into this a few times and its always been low voltage from 
> the cable company. They should be able to adjust it to be closer to 50 
> volts. If its to low you will get all sorts of problems from panel. You 
> can check with a voltmeter on incoming line to house!
> 
> --------------------------------------------------
> From: "Dave Horoschak" <dth at comcast.net>
> Sent: Tuesday, March 09, 2010 5:14 PM
> To: <hai-users at tssi.com>
> Subject: [Hai-users] VoIP compatibility
> 
>> Has anyone run into compatibility issues with VoIP and Omni panels?  I 
>> have one of the original OP2s, which has worked well with Verizon POTS 
>> service for years.  I recently switched to Comcast VoIP (using an RCA 
>> eMTA) and have had problems ever since.
>>
>> There are a few details I can provide:
>> 1. The general state of the system is PHONE LINE DEAD.
>> 2. Immediately after hooking up the phone line to the RJ31X jack I get 
>> System OK, then about a minute later it reverts to phone line dead.
>> 3. When I pick up a phone in the house I do not get the click that 
>> allows local access.
>> 4. All of the house phones (which are wired through the RJ31X) work fine.
>> 5. When someone calls, the OP2 will frequently pick up on one ring and 
>> beep.  Then if there's another call a minute later it doesn't pick up. 
>> This activity will typically trigger the OP2 problem alert beep at the 
>> keypads.
>>
>> Comcast has been out twice and concluded that the OP2 isn't 
>> compatibile with VoIP and needs to be replaced.  I find this hard to 
>> believe.
>>
>> I have a suspicion that the line voltage put out by the eMTA is lower 
>> or more variable than the POTS service, but that's just a guess.  
>> Maybe changing to a different model would help?
>>
>> Any ideas?  I assume others have used the various Omni panels with 
>> VoIP successfully, how about with the RCA eMTA?
>>  - Dave
>>
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> 
>