asterisk users - Jun 2020 - Voice "broken" during calls

Am 13.06.2020 um 22:56 schrieb Antony Stone:

Hi Antony,
> I would like to see a much simpler one-for-one comparison: only change one 
> thing at a time, and see what the difference is.
> 
> So: I suggest you try *two* independent *pairs* of tests:
OK
> 1a. Using your Android phone, connect using your home wireless network (I 
> assume you have a wireless network, if not then skip to test 2) to your
home
> Asterisk server, make a phone call to some external number, check the call 
> quality.
Today was the quality not so excellent as yesterday...
Both I and my father in law could hear "interruptions", but so so much
as if I call with the Thomson phone...
> 1b. Using your Thomson phone, connected using your home cabled network to
your
> home Asterisk server, make a phone call to the same external number and
check
> the call quality.
This was the same as always... More little "broken voice" on both
parts...
> 2a. Using your Android phone, connect from outside your home wireless
network
> over LTE to your home Asterisk server and make a phone call to the same
number
> again (you'll need someone with a bit of patience and understanding on
the
> other end of this number ...)  Check the call quality.
It was a little bit better. I didn't hear any "interruptions", but
my
father in law does. Not many, but somes...
> 2b. Take your Thomson telephone to some other location with Internet
access,
> let it register to your home Asterisk server, and them make a call to the
same
> number yet again.  I'm sure you can get the Thomson to connect to
Asterisk via
> some external network, since you say you can do this from your Android
phone.
> Again, check the call quality.
Right now I don't have the possibility to do that... :(

I did another test, today: I called my leased line number using my
mobile phone (over GSM, not VoIP) and wait for the answering maschine.
So, as a normal call from outside if I'm not at home.
Result: the quality is *excellent*. I didn't hear any
"interruptions" in
the message of the answering maschine and, as I played the message I
spoked there were no "interruptions", too...

So, the module voicemail in Asterisk does *not* have the same problems
as the other phones.
And the Thomson VoIP-phone has more problems than my Android connected
to the Asterisk...

Maybe helps this behaviour to find the problem?
> PS; Just for fun, what happens if you let your Android phone connect via
LTE
> to your home Asterisk server and you dial your (home, cabled) Thomson phone
> from it?  What's the call quality like then?
The quality is terrible. It is not possible to understand any word...
BUT: if I call my wife using the Thomson (she uses a Thomsons, same
model, too!) the quality is excellent...
> In regard to:
> 
> On Saturday 13 June 2020 at 18:25:32, Luca Bertoncello wrote:
> 
>> 2) where can I change these settings?
> 
> sip.conf
> 
> Look for lines such as 
> 
> 	disallow=all
> 	allow=ulaw
> 	allow=alaw
> 	allow=h263
> 
> They may be in the [general] section, or they may be in the client (Android
/
> Thomson) specific sections.
In my [general] section I have:

disallow=all
allow=alaw
allow=ulaw
allow=ilbc
allow=g729
allow=g723
allow=gsm                       ; Messagenet need gsm...

Thanks
Luca Bertoncello
(lucabert at lucabert.de)

On Sunday 14 June 2020 at 09:00:26, Luca Bertoncello wrote:
> I did another test, today: I called my leased line number using my
> mobile phone (over GSM, not VoIP) and wait for the answering maschine.
> So, as a normal call from outside if I'm not at home.
> Result: the quality is *excellent*. I didn't hear any
"interruptions" in
> the message of the answering maschine and, as I played the message I
> spoked there were no "interruptions", too...
> 
> So, the module voicemail in Asterisk does *not* have the same problems
> as the other phones.
> And the Thomson VoIP-phone has more problems than my Android connected
> to the Asterisk...
So, you don't get "consistently good quality" in any situation,
but it seems
like the Thomson phone being involved makes things worse.
> > what happens if you let your Android phone connect via LTE to your
home
> > Asterisk server and you dial your (home, cabled) Thomson phone from
it?
> > What's the call quality like then?
> 
> The quality is terrible. It is not possible to understand any word...
> BUT: if I call my wife using the Thomson (she uses a Thomsons, same
> model, too!) the quality is excellent...
And is her Thomson connected on the same network to the same Asterisk server, 
or is it somewhere else altogether?

Why do you have:
> allow=ilbc
in sip.conf?


Antony.

-- 
The words "e pluribus unum" on the Great Seal of the United States are
from a
poem by Virgil entitled "Moretum", which is about cheese and garlic
salad
dressing.

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Am 14.06.2020 um 10:49 schrieb Antony Stone:
>> So, the module voicemail in Asterisk does *not* have the same problems
>> as the other phones.
>> And the Thomson VoIP-phone has more problems than my Android connected
>> to the Asterisk...
> 
> So, you don't get "consistently good quality" in any
situation, but it seems
> like the Thomson phone being involved makes things worse.
Correct
>>> what happens if you let your Android phone connect via LTE to your
home
>>> Asterisk server and you dial your (home, cabled) Thomson phone from
it?
>>> What's the call quality like then?
>>
>> The quality is terrible. It is not possible to understand any word...
>> BUT: if I call my wife using the Thomson (she uses a Thomsons, same
>> model, too!) the quality is excellent...
> 
> And is her Thomson connected on the same network to the same Asterisk
server,
> or is it somewhere else altogether?
Yes, both telefons are in the same VLAN and Asterisk, too.
> Why do you have:
> 
>> allow=ilbc
> 
> in sip.conf?
I can't really remember why I added it...
I try to remove it now and call my father in law. No changes...

Thanks
Luca Bertoncello
(lucabert at lucabert.de)