[VoIP] Unknown problem ?

[Ian Jolly]

Thanks folks for the comments. Looks as though we just "switch off" the 
qualify statement and the problem goes away :-)

I was just wondering if it was a genuine problem or not.

Ian Jolly
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----- Original Message ----- 
From: "John Novack" <jnovack at stromberg-carlson.org>
To: "Voice Over IP Tandem for Analog Switches" <voip at lists.ckts.info>
Sent: Tuesday, August 14, 2007 3:12 PM
Subject: Re: [VoIP] Unknown problem ?


>
>
> Rusty Dekema wrote:
>> On 8/13/07, Greg Blakely <greg at vyger.net> wrote:
>>
>>> If you have either your sip or iax2 clients tagged as anything other 
>>> than QUALIFY=NO, then asterisk will check them on a continual basis to 
>>> see if they are reachable.  If they're not, then calls won't even be 
>>> attempted to them.
>>>
>>> You'll also get notice on the console when reachable/unreachable status
>>> changes.
> I don't see these with my install of 1.2, probably because I have
> removed notices from logger.conf
>
> I also don't use qualify, and don't have any issues with SIP devices on
> my LAN.
>
> Perhaps the simple solution is to remove "notice" from the console line
> in logger.conf. Especially if the SIP devices all work.
>
> John Novack
>
>
>> In my experience running Asterisk 1.2, the qualify feature was
>> absolutely useless. SIP devices (of all kinds; various softphones,
>> hardware-based ATAs, etc) would habitually "flap" back and forth from
>> reachable to unreachable even though they were connected to my
>> Asterisk server on a completely non-loaded 100mbit local ethernet,
>> even though the Asterisk server and the PCs running the soft phones
>> had no other CPU load, and even though I increased the qualify= time
>> to over 2000ms.
>>
>> Since these SIP devices otherwise worked perfectly, it was quite clear
>> that they were not truly "unreachable" for periods approaching
>> anything like 2 seconds. I don't know what the problem was, and I
>> don't know whether it still exists in Asterisk 1.4 since, although I
>> run it, I have not bothered to turn the qualify option back on.
>>
>> Rusty
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>>
>>
>
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