Help installing an ISDN-2e / VoIP Telephone System

Posted on 2008-06-18
Last Modified: 2013-12-29
We need a new telephone system. We do not want a full VoIP  hosted system, we want a PBX control unit onsite that has the ability to support IP phone (typically 1 or 2). The premises will require 2 extensions initially and require a growth to around 5 extensions. This is on top on the IP phone.

Basically, the way we want it tp operate is simple, we want the ability to have 2 lines. We currently have 1 telephone number and when the inbound call is made we want all extensions to flash/ring to indicate an incoming call, including the IP phone assuming it is connected to a live ADSL line.

Basic call transfer features will be required as well as the ability to plug in a manual answer phone. The IP phone will be at an employee home for out of hours calls etc.

We have been quoted the following system

Telephone System - Samsung OfficeServ 12
Central Control Unit (comprising)
 4 channel 64k ISDN
 2 Digital Extension circuits
 5 Analogue Extension Circuits
 4 Channel MGI / VoIP

In addition the quote includes
2 x 7 button display keyphones
1 x 7 button display IP keyphones

The price of the quote supplied/fitted/commissioning/training/1st years maintenance is £1,380 (UKP)
(we are doing the cabling inhouse to keep costs down)

We do not have much telephony experience in house but technical experience is very high.  My questions are

1. Is the price competative?
2. Is the product any good?
3. how straight forward is the full installation? includes arranging for line installation etc.

I understand that hosted VoIP PBX systems are available but this is NOT something we are considering or would consider at this time.
Question by:DanoliSolutions
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Expert Comment

ID: 21818464
i don't know about the product, or the install but i do know that i could provide you with a service that would give you a voip pbx that is the price of a pc £200+, a adsl interface card £250+, ip phones £35+ and if you want to use normal analogue phones it is from £80 plus cableing.  the ip phones would be able to connect to exiting  cat5 cable network. the down side is that it is not from a big name like Samsung, it is a system called asterisk. it is a peace of software that runs on Linux and gives you expandability to an infinite degree (voicemail to email, fax to email, email to fax, auto assistants, internet based voip lines, queues, call groups{will give you the ring all function} and menny other custom aplications) .  there are other suppliers of this solution but i am unable to help you with that but i would say googleing asterisk and your country, county or city might bring up some results.
and don't forget i haven't included labour in my estimate but i would say that i could do it for under £1000.

Author Comment

ID: 21818480
Is this a PBX or VoIP? I.e. Does it have physical ISDN lines (not ADSL) to accomodate the PBX?

Expert Comment

ID: 21818571
sorry yes it dose have physical isdn lines that was a mistake on my behalf, i get my tla's mixed up (yes i know its not a real tla) basically you have a pc with the software on it and you can install fxo cards (for analogue lines) and bri, pri cards (for isdn lines) and an ordinary network card (for voip lines)

the network card is also used for the ip phones and for analogue phones you need an fxs card.

Author Comment

ID: 21818608
Thanks for the input but rather stick to the kit mentioned.

Accepted Solution

darkmooink earned 500 total points
ID: 21818658
ok fare enough there are other solutions that may or may not be better or cheaper at or but DO have a look at other solutions.

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