I live at a dorm with 100 residents divided in two buildings. We have an old analog doorphone system which require each resident to have an analog phone in their room. The current analog system is buggy, unstable and outdated, which is why we want to completely replace it with a new VoIP-system with new hardware.
We would like a setup with two doorphones (one per building), with a dedicated button per resident in that building (50 per terminal), plus maybe two or four buttons so you can call the old analog phones in the common areas. These old analog phones will most likely also be replaced with new VoIP-phones.
We will also need the ability to send a signal to the door latch mechanism.
Has to be rated for outdoor installation. (It’s quite cold and wet here most of the year)
PoE (Power over ethernet) is also of some value to us, although it is not a deciding factor.
Depending on price and availible models a keypad-terminal would also be acceptable, although the other is preferred.
We would like to forward all doorphone calls to the residents cell phone, and maybe forward the call to the common area phones after X time.
We would like the ability to catch a single DTMF-key-press to release the doorlatch.
Interface to easily update the phone number database when a resident moves in/out.
Set a time limit of e.g. 5 min. to avoid abuse.
2 outgoing VoIP-lines. (One for each terminal)
No outgoing calls from common area phones.
Ability to run the Asterisk server on a virtual machine.
We feel comfortable setting up the Asterisk server, but know nothing about VoIP-hardware so we need help with recommandations for hardware and what other infrastructure will be needed to realise the project.
Also if you see any pitfalls in the desired configuration, we will value your opinion.
Thank you for your time, your help is greatly appreciated! =)