[asterisk-users] Almost solved: using my Asterisk from Internet

[Luca Bertoncello]

Zitat von A J Stiles <asterisk_list at earthshod.co.uk>:

>> If I call a phone at home using my cellphone it works and the quality
>> is perfect!
>> If a phone at home call my cellphone, however, the quality on my
>> cellphone is very poor, but on the other phone is perfect...
>>
>> I think, it is something by the codecs, but I don't know what...
>
> Codecs would be the first thing I would be looking at.

Me too... :)

> The "native" codec used by the PSTN throughout Europe is G.711 A-law, or just
> alaw for short; and if you are making a system which connects with the PSTN,
> there is rarely a good reason to use anything else; since something,  
> somewhere

Well, PSTN (and ISDN) in Germany will be shutted down in short...  
That's why I'm experimenting with Asterisk now... :)

> -- and most probably *your* Asterisk server -- is going to wind up having to
> translate from one codec to another.  That is going to  (1)  take a finite
> amount of time and  (2)  introduce distortion.
>
> Try, in the top section of your sip.conf file,
>
> disallow=all
> allow=alaw
>
> And that ought to fix it.

I wanted to write the list again, since I maybe got it just adding  
"allow=all" for the user...
I'll try your configuration this evening, too and report to the list...

I'm very happy, that now I can login in my Asterisk at home and I  
don't need another Asterisk on a separate server.
Firewall can be very difficult to setup, sometimes, for a SysAdmin as  
I be, too... :(

Regards
Luca Bertoncello
(lucabert at lucabert.de)