[asterisk-users] Re: Re: Help - Poor Voice Quality

[Jim Duda]

Yes, I had seen something in various posts about using SIP instead of IAX2.  I have been switching back and forth 
between IAX2 and SIP, however, I haven't seen any noticeable difference.  I will try a switch back to SIP again and see 
how that goes.
Jim


"James Fromm" <fromm at omnis.com> wrote in message news:45C9F58D.90404 at omnis.com...
> Jim,
>
> I too am a Teliax user.  Talk to their technical support. IAX2 is NOT preferred.  They'll tell you to use SIP.
>
> Jim Duda wrote:
>> Thanks for the reply Lacy.
>>
>> Yes, I know that I am using IAX2 and not SIP for my connection to teliax.  IAX2 is the preferred protocol for 
>> connection to teliax.  I have the firewall configured to prioritorize port 4569 for IAX2.
>>
>> I have the shorewall tcdevices file setup with 3 mbit download and 500 Kbit upload speeds.
>>
>> Jim
>>
>> Lacy Moore wrote:
>>> Jim Duda wrote:
>>>> I've been on the shorewall firewall and confirmed that I have the
>>>> firewall configured properly for VOIP QOS.
>>>>
>>> What exactly have you done here?  You do know that you are apparently
>>> using IAX2 and not SIP.  Those are not the same protocols.  In fact, if
>>> you configured the shorewall system for standard VoIP, that's your
>>> problem.  IAX2 operates on different ports that SIP.  Whereas SIP
>>> operates on a control port and then create media ports, IAX2 only uses one.
>>>
>>> As far as download speed, what have you told shorewall your download
>>> speed is?  I'm not familiar with it, but just guessing that it's
>>> probably like most others.  If this is the case, somewhere there is a
>>> setting to tell it what your download and upload speed is.
>>>
>>> 500kpbs up doesn't seem like enough bandwidth to support 10Mpbs down,
>>> either.
>>>
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