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How do you do....it? Thread, Telephone system "VOIP" - Asterisk in Technical; Hi everyone, The school I am working on is considering to replace the really old " analog lines " telephone ...
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    Telephone system "VOIP" - Asterisk

    Hi everyone,

    The school I am working on is considering to replace the really old " analog lines " telephone system and we are looking at all different possibilities.

    Our school is mostly running Open Source solutions, so we are considering of using Asterisk and FreePBX. Is there anyone using it that could give me some kind of feedback? As telephoning is really important in a school, the school would like to "know" real cases where this system is in place. We are looking at other business solutions as well, but we are not that convince on paying licenses to expand the system later on or forcing us of using their specific handsets, and we would like to set up the system using our current infrastructure.

    Do you use ISDN lines or a SIP trunk for the external calls? A SIP Trunk seems a good solution, but we do not trust 100% our internet connection and we would like something that can still work when the internet is down. I currently have a test environment set up and anything to do with internal calls, etc looks quite easy, however I am not familiarized with the set up for external calls with different ISDN lines or multiple numbers and SIP trunks. I would really appreciate any guidelines or resources that could help me on this matter.

    Further more, what is your backup/DR plan on this type of systems? Do you currently have UPSs on every switch cabinet to keep the telephones working?

    Many thanks

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    Quackers's Avatar
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    We moved to Elastix, which is just Asterisk with all the bells and whistles added, and much better interface. (Still free).

    We had an ISDN32e line put in and rent 8 channels. Has worked flawlessly since 2009. It just works!

    Disaster plan is 1 normal BT PSTN line still in main office that alarms, and an emergency phone go on.

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    From having a quick glance i think the most appropriate move would be an ip enabled system, with out implementing the voip connection. This will allow you to make the necessary change when required. If you have multi sites that needed to connect with each other then that would be implemented using the voip connection, but with call charges dramatically being reduced, there are alternatives to connecting a school on a voip platform.

    We can come do a site survey if you like and give you some accurate info?

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