-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 El 2017-12-12 a las 12:29 +0100, Per Jessen escribió:
Carlos E. R. wrote:
In my case, the phone is handled not by the router, but by a device called ONT, which does the conversion from fibre to Ethernet. The router is connected to it, and it also could handle the phone, but doesn't.
It would be perfectly possible to design it with a battery, it must draw an small standby current. It would also be possible to charge extra for the optional battery, it would be better than the current situation of no battery at all.
So I have ONT + Router + TV desco, plus *many* cables.
I don't think I've quite understood your setup, but to compare with my own - the router needs power, it's on the UPS. Asterisk needs power, it's on the UPS. The switch in the house needs power, has no UPS. The DECT base station needs power, has no UPS. If we have no power, we have no telephone - other than the mobiles.
Ok, I'll try to explain. The fibre from the telco connects to a device called ONT (https://en.m.wikipedia.org/wiki/Optical_network_terminal). This device has a connector (RJ11?) that provides the POTS alike service, and an ethernet connector. The phone connector from the ONT is connected to the phone input of the DECT base, giving analog phone service to the house, and also to the old copper pair inside the house, although I do not use it. I think there is a separate bell near the patio. It is of course disconnected from the street copper pair. The ONT should be designed with a battery (included or optional), but it is not. The ONT obviously handles the SIP to phone conversion. I have no access to it, no configuration interface appears on the LAN, I think. The ethernet connection from the ONT goes to the router, which has the typical 4+1 mouths. One of these goes to the TV desco, another to my switch on a different room and floor. The router also has a phone output connector, which is not used in the currently ISP suplied configuration. The TV desco connects to the router on eth, and also to the digital TV antenna on the roof (IIRC), which is not used. Has an hdmi? output that goes to the TV set. Finally, there is a TV set :-) All those gadgets, including the TV, go to the same UPS. All of them, because the UPS sits on the floor at the side of the cabinet, and there is a single AC mains cable going into the cabinet. The switch and WiFI AP are on another room with the computers, so they get a different UPS. The router has its own WiFi AP, but I disabled it (bad coverage). Currently the ISP replaces ONT + Router + TV desco with a single box. So much fewer cables and AC power suplies.
Mobile network for emergencies... Well, after some hours they need recharging. And that network typically saturates easily.
Mobile phone batteries easily lasts for a day or two.
Mine barely a day.
Besides, we're not talking nationwide emergencies, just an individual dialling 112.
Exactly. My mains have failed. If the repairs take a day or two (not that unusual) I have no land line nor mobile.
I think it's a perfectly sound decision to rely on the mobile phone. It was already partially done when we switched to ISDN 25 years ago - the network terminator box (NTBA) can be powered from the network, but it cannot power the ISDN phones, only an oldfashioned analogue phone would work in an emergency. Anyway, we're way off-topic.
Right... I thought this conversation was hapening on the OT mail list :-o - -- Cheers Carlos E. R. (from openSUSE 42.2 x86_64 "Malachite" (Minas Tirith)) -----BEGIN PGP SIGNATURE----- Version: GnuPG v2 iF4EAREIAAYFAlovynEACgkQja8UbcUWM1zObgD+LBz7+2WkujHBhvzXGFkWjSFj K8ZHLTjX9cvbg4FOO/oA/jIbva44et+2CPBW+/JbG4v6HSYbDqFY6/GSHuz2Z3uM =wgil -----END PGP SIGNATURE-----