Problems sending signals with cable modem phone over internet.

[Guardog]

Just wondering if anyone has run into this yet. I recently set up a new panel, Ademco V-15. The subscriber was using the subject
phone system, from Vonage.
After a few programing glitches I got it working and sent several signals the the CS using Ademco contact ID reporting.
A week later I get I call from the customer that they got a "fail to comm" msg. after a they tripped the alarm. While
listening in to the panel making the call it appeared all was normal but I wasn't getting any handshake. A few
more tries at different reporting types led me to realize only a low speed format would work. Seems the higher speed
signals were getting corrupted even though they did work initially.

 

[Jim Rojas]

Yes, I have had similar problems. I believe Vonage doesn't put out enough
voltage on the phone line for the signals to get through.

Jim Rojas

Just wondering if anyone has run into this yet. I recently set up a new

panel, Ademco V-15. The subscriber was using the subject

phone system, from Vonage.
After a few programing glitches I got it working and sent several signals

the the CS using Ademco contact ID reporting.

A week later I get I call from the customer that they got a "fail to

comm" msg. after a they tripped the alarm. While

listening in to the panel making the call it appeared all was normal but

I wasn't getting any handshake. A few

more tries at different reporting types led me to realize only a low speed

format would work. Seems the higher speed

 

[A.J.]

Or there is too much delay on the VOIP network.

 

[dep_blueman]

IMO, you should not count on consumer class VoIP systems for life and
death communications.

Just the uptime of the Internet connection is so low cpr. to a land
line phone system that it shoud not be considered. Add to that the
consumer hardware, the VoIP system, and all the associated factors and
I just can't see it being acceptable for most people. IMO, I would
rather have cellular only than Internet if a land line was not
available.

FYI, this does not apply to business class lines or VoIP systems.

-D

 

[petem]

here Videotron was planning to provide VOIP cable modem..(a cable modem that
had a jack were you could connect a telephone..)

i was part of the testing team for normal operation and for alarm signal
transmission..

when the signal was not compressed and used a full 64 kbs stream all was
well,no problem signal was sent to the central with out loosing any data..

but as soon compression was used the problem begun..any type of signal was
not allways sent..
some kiss off tone was not detected and it even cause the whole data to be
not transmitted...

so if you want to use VOIP telephone lines to send alarm signal be sure that
there is at least a 64kbs data stream available...

 

[Guardog]

here Videotron was planning to provide VOIP cable modem..(a cable modem that
had a jack were you could connect a telephone..)

i was part of the testing team for normal operation and for alarm signal
transmission..

when the signal was not compressed and used a full 64 kbs stream all was
well,no problem signal was sent to the central with out loosing any data..

but as soon compression was used the problem begun..any type of signal was
not allways sent..
some kiss off tone was not detected and it even cause the whole data to be
not transmitted...

so if you want to use VOIP telephone lines to send alarm signal be sure that
there is at least a 64kbs data stream available...

To answer both comments, first this service is the only one the customer has running in their house and I don't
think I could convince them to go for the added cost of cellular. As far as bandwidth goes, Vonage gives you the
ability to set this to low (25k) med(50k) or high(96k), which I did and it still failed to send the higher speed signals.

 

[Jackcsg]

Why on earth would you want to send Digital DTMF tones over a VoIP bridge
anyway? IMO Voice over IP has not quite yet been perfected. I have had
similar situations with satellite phones, and Digital Signals. I've been
working on a "system" which sends alarm signals TCP/IP and using a VoIP
Bridge for tripping two-way voice. It has been working successfully for 9
months. I would, at this point, never consider sending alarm tones over
VoIP. Not to mention it's not UL approved.

Jack

To answer both comments, first this service is the only one the

customer has running in their house and I don't

think I could convince them to go for the added cost of cellular. As far

as bandwidth goes, Vonage gives you the

ability to set this to low (25k) med(50k) or high(96k), which I did and it

still failed to send the higher speed signals.