[Asterisk-Users] Intel Modem vs Digium Cards

[Karl Dyson]

> -----Original Message-----
> From: asterisk-users-bounces at lists.digium.com 
> [mailto:asterisk-users-bounces at lists.digium.com] On Behalf Of 
> Benjamin on Asterisk Mailing Lists
> Sent: 12 October 2004 09:36
> To: Asterisk Users Mailing List - Non-Commercial Discussion
> Subject: Re: [Asterisk-Users] Intel Modem vs Digium Cards
> 
> On Tue, 12 Oct 2004 09:05:02 +0100, Karl Dyson <kd at junesta.com> wrote:
> > It works most of the time, but drops calls occasionally.
> 
> and:
> 
> > To resolve my problem, I may buy a Sipura-3000
> 
> I don't know how much effort you have already made but keep 
> in mind that there are parameters in the Zaptel drivers which 
> can be tweaked to at least reduce false hangups significantly.

It doesn't look like false hangups (IMHO). Calls drop mid call,
regardles of volume. You can go for a week with no drops, and then get 5
in a day (with fairly consistent usage patterns).

Don't worry about effort involved -- it's installed in my house, and I
"tinker" when ever possible, and enjoy it. My wife isn't especially over
the moon with the dropped calls, but is a patient woman :)

> There is also a patch now which allows you to disable the 
> disconnect supervision on outgoing Zaptel calls only because 
> that's the scenario where you are most unlikely to need it.
> 

I get dropped calls occasionally on both in and outbound calls, and to
aid diagnosis have a phone plugged directly into the line as well now (a
splitter now has the connection to the X100P and this additional
handset). If an inbound call drops, you can pick up this handset and
continue the call, this indicating the X100P is dropping the call.

I'd quite like to keep the internal card, and hence like the idea of
"upgrading" to a TDM400.... This would allow me to continue to use
distinctive ringing, especially as I have a use for it(!), but I don't
want to spend money on a TDM11B kit only to find that it doesn't get
along with the amd/via combination. Is anyone using a TDM400 of any
description (preferably FXO *and* FXS just in case) with an AMD/Via
combination?

I don't think the Sipura does DRING, so would have to loose that
functionality if I go that route. On the plus side, I get failover
FXO<->FXS on the sipura in the event the * server dies, or in the event
of a power failure. Swings and roundabouts!

Thanks,

Karl

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