[Asterisk-Users] sip seeding vs registration

[Race Vanderdecken]

Seeding is important, more important then most people think.

If you are running a gateway and people can't call a phone behind the
gateway because Asterisk has done a reboot, then the call from the pay
phone cannot get in because the phone address is not know.

While the 30-45 second or 5 minute delay until the register may seem
picky so some it is to long for others.

Business can not be halted while we are waiting for the SIP phone to
register. A customer does not want to call in and then be told the phone
is not available, make you look bad to the customer. Don't think of the
normal 9-5 office stuff, think of a server doing continuous calls all
day long. Think 3rd World Bodega.

I use a "Zombie" list; every time a phone registers I note its address.
When asterisk reboots it checks the "Zombie" file and tells each phone
in the list to "re-register" (a cool SIP command) immediately. This way
there is no waiting for the phone time out to expire.

The Zombie list is great for development as we, or at least I, tend to
fix, boot, break, fix, boot, break... hundreds of times a day. If I had
to wait on the phone to call in then nothing would get done. If I have
the phone self-registration set low, the messages make extra debug
traffic to wade through. Too high and I am sitting idle till it calls
in.

Race Vanderdecken
Merry Christmas

-----Original Message-----
From: asterisk-users-bounces at lists.digium.com
[mailto:asterisk-users-bounces at lists.digium.com] On Behalf Of Greg -
Cirelle Enterprises
Sent: 22 December 2004 11:30
To: Asterisk Users Mailing List - Non-Commercial Discussion
Subject: Re: [Asterisk-Users] sip seeding vs registration

At 12:43 AM 12/22/04, you wrote:
>Seeding occurs if there is still a persistent record (in astdb) of a
preceding
>location registration of a peer after a restart of asterisk or the sip 
>channel.
>
>If Asterisk goes down and the peer has a long registration refresh
time,
>the phone maybe inaccessible for a while (until its own refresh timer
expires)
>if there is no record of its IP address after the restart.
>The persistent record and seeding (of the IP address) solves this.
>
>

so this might be the problem with the registration failures?
Registration from '<sip:52221 at 192.168.70.2>' failed for '192.168.70.26'

Asterisk registration timeout is shorter than the phone registration
timeout???

I'm not sure my statement makes any kind of sense, if it does, than
there is a
serious issue with the asterisk device communication system.

Regards
Greg
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