[Asterisk-Users] Transient SIP Registration Issues

[Eric Wieling aka ManxPower]

Richard J. Sears wrote:
> Hey Everyone - 
> 
> I am having a problem that is keeping me awake at night.....ok, so maybe
> not keeping me awake, but it is frustrating. :-)
> 
> I am running Asterisk 1.0.7 on Gentoo (2.6.10-gentoo-r6) on an Intel
> 700Mhz box with 512MB of RAM.
> 
> The system is very light, with maybe 35 SIP and IAX connections. I am
> using NuFone and Konfer for dialtone with no traditional TDM cards
> installed at all. Overall system load is around .4 or less most of the
> time.
> 
> Overall - a very simple configuration.
> 
> I am using (mostly) the Linksys PAP2-NA units for deployment. I
> preconfigure the units, then ship them out to the people that need them.
> I also have several of the Digium IAXy units in use.
> 
> The problem I am starting to see is that a person's extension will work
> great, and then I will start to see failed registrations for their unit
> over and over again. When this happens, the units fall offline. Then the
> unit will magically reregister and start to work again.
> 
> I had assumed (initially) that it was a bad unit, so I replaced it, but
> then it started to happen to other units as well.
> 
> When registered, the units in question have ping time under 50 to 60 ms,
> and no latency associated with them. Packet loss is extremely minimal or
> none at all.

There was a thread recently, I don't recall if it was -users or -dev 
about SIP registrations failing when network latency was high.  I don't 
remember seeing a solution.

I would suggest trying Google, but I'll bet it has not indexed the 
mailing list archives recently.  Try searching manually.

--Eric