Advice on VOIP system for our school
I know there have been loads of VOIP threads already, I have read the vast majority of them!
It is something we really need to get done here, just trying to consider our options. Quick overview of our school & network:
- 3 sites, each connected with 100Mb fibre and VPN between each. External access is 10Mb EFM line.
- Old (around 10 years?) internal phone system in senior department, 6-8 external numbers, as for lines, not sure. Can't find an ISDN box or anything, not sure what comes in.
- Approx 30 extensions at this site
- Other 2 sites just have 3-5 standard phone lines per site
First of all, hosted or internal? Everything I have heard so far says avoid hosted unless it's only a few users, which I have no problem with. Opinions?
Should I be going for total VOIP including SIP trunks or just internal and keep analogue lines? (I'm thinking keep analogue lines, for now at least)
Finally, what is a ballpark figure I should be looking at for a controller, and per handset?
Also, I was thinking perhaps I could start learning Asterisk/FreePBX, buy a couple of cheap IP phones and get a whole test setup and potenially do it myself. Or (bearing in mind my limited VOIP knowledge, which will improve) should I be looking at purely off the shelf solutions?
Finally, with the links between schools, is it realistic to have the VOIP traffic passing over the VPN or could that be problematic?