Re: Strange Phone Line Issue

["I brive a dus" <alarminstall@xxxxxxx>]

Does the customer subscribe to Anonymous Call Rejection and are you
trying to hit the panel from a private number?
Are you POSITIVE you have absolute Line Seizure? Did you swap the RJ
and cord? If you answer yes to any or all of these check your wires
anyway.
Let us know what the trouble ended up being.

ABLE_1 wrote:
> Had a strange occurrence today with a customers phone line that is still
> un-resolved.  Thought I would share and see if anyone has any hints as to
> what's going on.
>
> Customer has one phone line.
> Standard set up with RJ31X.
> Phone line has DSL
> DSL Filters installed.
> System Communicates Signals to CS, all good
> Normal phones in house with Answering Machine and CID Box
> Previous connection for UpDownload OK.
>
> Problem comes up when I try to connect to panel remotely.  Panel will hang
> and then disconnect.  Went to site today and used my laptop to connect to
> the panel thru my "private phone company in a box" which would be the same
> as connecting over the phone line.  Connection is good and data transferred
> as it should.
>
> Connected my Butt Set to the phone line and dialed with my cell phone to
> trigger the panel to answer, Answering Machine Bypass function enabled.
> While listening to the amplified speaker I heard what sounded like a modem
> answering with a carrier tone after the first ring.
>
> To bring this narrative ahead a bit, I ended up at the demarc and with the
> house, panel and all disconnected so that I was connected direct from the CO
> and the following was observed.
>
> On the speaker of the butt set just before the 1st ring a small buzz click
> was heard and then after the first ring a carrier tone is heard for about 1
> second and then a pause and then the next ring.  Nothing else is heard
> except for normal rings after that.
>
> It is as if another modem or panel is on the line and connecting on the
> first ring but not answering the call.
>
> Has anyone experienced anything like this and/or what the blazes is it or
> could it be?????????   I ran out of time to investigate it further on site
> with voltages, current, etc. but it seems very strange.  Any thoughts from
> the masses would be welcome.
>
> Thanks,
>
> Les