[asterisk-users] [OT] Does Energy Savings mode exist with BRI/PtP ?

Olivier oza.4h07 at gmail.com
Wed Dec 11 09:42:52 CST 2013

2013/12/11 jg <webaccounts at jgoettgens.de>

> Yes, I can confirm that. P2P always requires a PBX and you can easily
> build up trunks of P2P connections. So all channels always need to work in
> a coordinated way, if you allow this sloppy formulation. Another reason for
> not allowing the energy saving mode is probably that in some countries part
> of the phone number resolution has to happen inside the pbx on the customer
> side. This could be a problem if it takes too much time to wake up a
> device, or if the state of the connection cannot be determined beforehand.

So if my understanding is correct, Energy Saving mode exists in P2P BRI
How do you monitor these lines ?
By monitoring, I mean "getting an SNMP trap when the line is going down",
for instance.
Maybe I should just convince myself that I should not check anymore line
status looking a flag updated in real time, but simply trying to send an
outgoing call as I would with analog lines.

> P2MP does have an energy saving mode which depends on the PSTN and on the
> TE device. Sometimes phone companies allow special sequences (like *121#)
> that explicitly allow to disable the energy saving mode, if the P2MP
> connection is connected up to a PBX. Some customer devices have
> configuration options like "connect to a pbx" which send exactly this
> sequence to the next telephone switch.

Have you also heard about this special sequence with P2P lines or is it
something especially for P2MP ?

> All the technicals docs are available online, but I have yet to find a
> person, myself included, who actually read them all.

Yes that's true.

> All of this applies to Western Europe, only.
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