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VOIP
19 years 6 months ago #8360
by Ranger24
Patience - the last reserve of the any engineer
Replied by Ranger24 on topic The other side....
Hi,
I'd like to add my voice to this discussion, being from a telco background not dataco.
I am not sure the benefits stated really count:
1) Easy of Admin - All modern PABX (Private Automated Branch exchange) can be monitored from a single workstation, or remotely, or via a VPN - Just like call manager
2) Call re-route is also possible, though the need for it is different to a VoIP system. With a PABX the only congestion you will find is on external trunks, so routing is required to select the most appropriate trunk line based on destination, traffic level and cost. Very rarely do PABX systems have internal congestion as they have a dedicated network. You could argue it's madness to take voice from it's own dedicated network and squeeze it on to an already congested data network!(Try to convince the comms engineer of a airbase he wants to put his most vital comms traffic on data line)
3) Nice little quirks are plentiful in most PABXs. The last one I worked on (6 yrs ago) had over 200 call features (inc luding the example loosecannon cited). In terms of user features VoIP systems still have some way to go.
4) Using PC for phone calls isn't restricted to VoIP. Again this has been 'possible' from modern PABX (HiCOM, Realitis as examples) for about the last 8 yrs using TAPI (Telephony Application Prorammers Interface). Admittedly it is easier to do with VoIP systems.
The real benefit of VoIP does come with cost savings, but not in terms of call cost. The savings come with sharing the same infrastructure between voice & data (1 network, 1 set of overheads - equipment, staff & wires). So companies can reduce both their capex (Capital expenditure - equipment) and their opex (operating expenditure)
The other benefit that springs to mind is that of services. Voice networks are far superior to data networks for voice only. By moving to it all to the same data based network you are opening up a world of new possibilities - Multimedia calling, presence services, broadcast TV and so on.
I hope this helps even the debate
I'd like to add my voice to this discussion, being from a telco background not dataco.
I am not sure the benefits stated really count:
1) Easy of Admin - All modern PABX (Private Automated Branch exchange) can be monitored from a single workstation, or remotely, or via a VPN - Just like call manager
2) Call re-route is also possible, though the need for it is different to a VoIP system. With a PABX the only congestion you will find is on external trunks, so routing is required to select the most appropriate trunk line based on destination, traffic level and cost. Very rarely do PABX systems have internal congestion as they have a dedicated network. You could argue it's madness to take voice from it's own dedicated network and squeeze it on to an already congested data network!(Try to convince the comms engineer of a airbase he wants to put his most vital comms traffic on data line)
3) Nice little quirks are plentiful in most PABXs. The last one I worked on (6 yrs ago) had over 200 call features (inc luding the example loosecannon cited). In terms of user features VoIP systems still have some way to go.
4) Using PC for phone calls isn't restricted to VoIP. Again this has been 'possible' from modern PABX (HiCOM, Realitis as examples) for about the last 8 yrs using TAPI (Telephony Application Prorammers Interface). Admittedly it is easier to do with VoIP systems.
The real benefit of VoIP does come with cost savings, but not in terms of call cost. The savings come with sharing the same infrastructure between voice & data (1 network, 1 set of overheads - equipment, staff & wires). So companies can reduce both their capex (Capital expenditure - equipment) and their opex (operating expenditure)
The other benefit that springs to mind is that of services. Voice networks are far superior to data networks for voice only. By moving to it all to the same data based network you are opening up a world of new possibilities - Multimedia calling, presence services, broadcast TV and so on.
I hope this helps even the debate
Patience - the last reserve of the any engineer
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