[EMAIL PROTECTED] wrote:
> Jim Van Meggelen schrieb:
>> [EMAIL PROTECTED] wrote:
>>
>>> - ADSL 1000kBit/s Downstream, 128kBit/s Upstream
>>
>> That upstream bandwitch will need to be managed carefully.
>
> I know.
>
>> If you're using G.711, one channel would be using roughly 80kbit of
>> your upstream. Who has the most quality complaints: you, or the
>> people you are talking to?
>
> I don't know. I guess its equal. Since the problems occur
> even when I'm
> using GSM the bandwith shouldn't be the problem.

Not as much, but if you have any other outbound traffic over that
connection, it WILL still be a factor. Have you got a firewall/router
that provides any QoS features?

>>> Calls from or to the pstn are completely okay. Calls over SIP
>>> aren't. Calls over IAX couldn't be tested at the moment.
>>
>> Can you make a SIP connection directly to the box? No LAN, no WAN,
>> just a crossover cable between your SIP phone (soft or hard) and your
>> Asterisk system?
>
> No. My phone is connected via the Phonejack in the server that runs
> asterisk.


> But ... I could try to setup a software client that I connect to the
> server.

That might help to determine if the problem is in the Asterisk box or
the network. If you can make a local SIP client talk to your Phonejack
cleanly, and yet have problems with network connection, that could be a
factor.

Also, I recommend getting an account on IAXtel or FWD, and connecting a
softphone directly to those networks, and then into your system. That'll
stress your outgoing bandwidth, and potentially provide all kinds of
interesting information about what works and doesn't.

Cheers,

Jim.

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