ROT - Multi-Input VoIP Autodialler, Where To Buy in UK?

On 24/06/2018 11:08, Andy Burns wrote:
On 23/06/2018 23:07, Java Jive wrote:

On 23/06/2018 21:57, Andy Burns wrote:

On 23/06/2018 21:46, Java Jive wrote:

we needed multiple cables between the buildings, to connect the
public WiFi, bar tills and credit card machines, etc, while keeping
them physically separate right back to the router.

VLANs?

Yes.

So it should be do-able on a single cable?

Actually, thinking about it, when I said "Yes", that should have been
"Not yet". I was forgetting that I plan to use VLANs only to seperate
staff and general public access via the public access points, but had
some trouble the first time I tried to set this up, and had to abandon
the idea. It has turned out that my problems were caused by some
ambiguities in the router manual, which I've now resolved by contacting
the manufacturer's support line, and hopefully I'll be implementing this
on my next visit. At the moment, the office/reception, bar, and public
WiFi are on separate physical LAN subnets.

Java Jive wrote:

Graham J wrote:

a cheap network switch at each end of the cable connecting
the buildings could be regarded as sacrificial.

Trouble is, we'd need three at each end

Why? One trunk port carrying multiple tagged VLANs and several untagged
ports for the relevant guest/till/bar/office VLANs

On 25/06/2018 12:40, Andy Burns wrote:
Java Jive wrote:

Graham J wrote:

a cheap network switch at each end of the cable connecting the
buildings could be regarded as sacrificial.

Trouble is, we'd need three at each end

Why?Â* One trunk port carrying multiple tagged VLANs and several untagged
ports for the relevant guest/till/bar/office VLANs

We have three cables carrying three ethernet subnets, so using switches
as lightning fail points we would need three at each end. However, one
already comes out of the router via a switch, and another, possibly two
by now, already end(s) in a switch. Nevertheless I'd be advising my
client to buy three or four switches as lightning fail points - I just
know he won't buy it/them, literally.

Java Jive wrote:

We have three cables carrying three ethernet subnets,

So long as you/he are aware you could have one VLAN capable switch at
each end, with a single cable between trunk ports on them and then
specific ports for the different "function" VLANs

On 25/06/2018 21:25, Andy Burns wrote:
Java Jive wrote:

We have three cables carrying three ethernet subnets,

So long as you/he are aware you could have one VLAN capable switch at
each end, with a single cable between trunk ports on them and then
specific ports for the different "function" VLANs

It costs hardly any more to bury four cables than to bury one, and this
way you get the greater security of physical separation of the subnets.
Also, managed switches are considerably more expensive.

On 25/06/18 21:21, Java Jive wrote:

[snip]

We have three cables carrying three ethernet subnets, so using switches
as lightning fail points we would need three at each end.Â* However, one
already comes out of the router via a switch, and another, possibly two
by now, already end(s) in a switch.Â* Nevertheless I'd be advising my
client to buy three or four switches as lightning fail pointsÂ* -Â* I just
know he won't buy it/them, literally.

Just say to him "Do you want the system to work properly or not..? If
you do, then you have to do this."

If he still refuses, it's not your fault if his system falls over.


--
Ria in Aberdeen

[Send address is invalid, use sipsoup at gmail dot com to reply direct]

MissRiaElaine wrote:
On 25/06/18 21:21, Java Jive wrote:

[snip]

We have three cables carrying three ethernet subnets, so using
switches as lightning fail points we would need three at each end.
However, one already comes out of the router via a switch, and
another, possibly two by now, already end(s) in a switch.
Nevertheless I'd be advising my client to buy three or four switches
as lightning fail pointsÂ* -Â* I just know he won't buy it/them, literally.

Just say to him "Do you want the system to work properly or not..? If
you do, then you have to do this."

If he still refuses, it's not your fault if his system falls over.



The customer is typical of many small businesses - no concept of getting
expert advice to make the best use of available technology, even though
the initial costs might appear to be a little higher.

Sadly Java Jive has posted here about more than one such business - he
seems to attract them!

--
Graham J

On 25/06/2018 22:16, Graham J wrote:

Sadly Java Jive has posted here about more than one such business - he
seems to attract them!

Not really, it's just that I need the money, and am not too proud to
pick up such business as I can get. I give them professional advice at
a good price, and they can either take it or leave it, as long as they
pay me what I ask for my time, and don't try to blame me for a failure
that was a consequence of not following my advice, I'm not too fussed.
Mostly, though, they do take my advice, just not always straight away!