Please help - Cisco VoIP reconfiguration
Hi all, I am after some suggestions to help me move forward with the schools VoIP solution.
The current situation is the school as a Cisco VoIP solution put in my a managed ICT service provider years ago. The contract with the managed ICT provider ends this year. When that contract ends the school will lose connectivity to the call manager solution hosted off site.
At this point the 130 extensions (Cisco 7911's) will cease to work.
Onsite other than the phones is a Cisco 2851 voice gateway, an ISDN2 connection and a decent internet connection for possibly routing calls over SIP?
Can I ask what people would do if in a similar position? Would you look at putting back onsite a call manager express solution or a business edition 6000 by cisco? Or would you look at converting the handsets to SIP handsets and going down the open source route?
The school will just want to make sure that which ever provision they go with it is a robust and reliable solution. The only fear with the open source route is the lack of support and the fear of loosing phone connectivity if something were to go wrong with no backup.
I'd be really interested to see what people suggest, thank you.