VOIP - full IP system or hybrid?
We've got quotes for a replacement of our ageing phone system (this is from a supplier the school has used for many years and wants to keep using, so that part is out of my hands, plus I don't have enough experience to setup a system myself)
The lowest quote is for a hybrid solution which would provide IP phones for the admin staff, and for the remote sites connected via leased line (which is the main reason for looking at VOIP) yet keep the existing digital phones for most of the school, and the highest is for a pure IP system with every handset replaced with IP ones. There is obviously quote a few thousand £ difference in these quotes, but my boss has said she will go with whichever I think would be suitable.
I've mulled it over for weeks now and still can't decide - on one hand I'm thinking go for the cheaper end, as do classroom phones really need to be changed when they are only used to contact reception/other teachers internally, but on the other hand I'm thinking that if we're going to do it, we should go for the lot - not to mention the pure IP solution has a 1U rackmount controller, and the hybrid uses a modular system which could turn out being pretty big, also existing phone cabling terminates in the wrong place so would need to be moved anyway. But then with the full solution, there is a lot of work running extra network points to each room.
What would you do? The quotes are for a Toshiba system, the hybrid one is a Strata CIX 670 and the full IP one is a Toshiba IP Edge