Prompt software for organizing services

Question

linux

Please provide software for the following tasks:

1. Telephony with call recording, "press 1 to..." menu, employee extension numbers;
2. Video surveillance;
3. Local network, distribution of rights, organization-level file sharing (close to google drive);
4. User management (distribution of the Internet, access rights, changing passwords, closing the contact to the user through some single panel);
5. Mail service (ideally close in functionality to gmail/google drive);
6. Service of fire automatics and burglar alarms (is there such a thing at all? Fire sensors and alarms are tied to some software that can, for example, identify a faulty one, turn on a siren, turn on fire automatics);
7. Access control service (roughly the turnstile is tied to the server, reports who entered / exited and when);

In principle, I myself know the software for almost all tasks, but maybe something new has appeared, something has been greatly improved.
Please share anyone's experience.

Answer 1

1. code.google.com/p/virtual-pbx/
5. www.iredmail.org/

Answer 2

3 - network storage from synology, MB look towards freenas
4 - squid + sams
7 - I can only advise you to beware of the ssh office, buggy iron is made

Answer 3

1 asterisk-based freeswitch, asterisknow, etc, avaya, microsoft lync
2. ZoneMinder
3. Microsoft Infrastructure, unix-based + ldap
4. proxy server squid + MS Active Directory/ldap
5. zimbra (integrated solution), well, or a bicycle from postfix/exim/sendmail + dovecot/another imap/pop3 server + any frontend snout like roundcube.
6. In our CIS countries, these things are usually certified by the relevant authorities, and the offices that can install them also require certification. it is possible to stick a service “on the knee” here, but the supervisory authorities are unlikely to accept this and will be right.
7. ACS systems are now not made only by the lazy, so it already depends on the city and the amount required by the developer for deployment and support.

Answer 4

with knowledge and compliance with fire safety standards - please.
without knowledge - the first emergency at the facility and someone will sit down.
fire safety standards are written in blood. what about security systems - judging by the number of console guards (not state guards, just private companies) in Kyiv, it seems to me easier there ...