linux-kernel - Re: [PATCH 0/5] isdn: deprecate non-mISDN drivers

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Message-ID: <9da847b0-9e32-ad4b-78d3-15398b0f8fe2@koeln.de>
Date:   Tue, 11 Jun 2019 10:20:15 +0200
From:   Simon Ehlen <simon.ehlen@...ln.de>
To:     linux-netdev@...r.kernel.org, linux-driver-devel@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH 0/5] isdn: deprecate non-mISDN drivers

Hi,

Am 23.04.2019 um 17:11 schrieb Arnd Bergmann:
> It turns out that the suggestion from Karsten Keil wa to remove I4L
> in 2018 after the last public ISDN networks are shut down. This has
> happened now (with a very small number of exceptions), so I guess it's
> time to try again.
There are still public ISDN networks available. My provider (NetCologne) is still serving native ISDN.
> If anyone is still using isdn4linux and CAPI with modern kernels, please
> speak up now.
I'm using kernel isdn support in different ways.
1. To connect (b1pci,capidrv) to the PSTN of my provider to use phone (capi, chan_capi), fax (capi4hylafax, hylafax) and answering machine (vbox) services.
2. To build an internal ISDN network using hfc in NT mode.

There are other users as well still making use of isdn support in the linux kernel. [1]
As he pointed out, although public ISDN services are phasing out every AVM Fritz!Box is capable of providing VOIP services over it's internal S0 bus.
In case my provider decides to shut down ISDN I would make use of the S0 bus to keep my services running.

So please refrain from removing ISDN/CAPI support of the linux kernel.
>       Arnd
Kind regards,
Simon

[1] https://lkml.org/lkml/2019/6/9/168