[Asterisk-Users] "Glare" condition - How well does asteriskhandle?

[W. Kevin Hunt]

You are correct... No glare on a PRI

W. Kevin Hunt

CCIE #11841
www.huntbrothers.com
 
-----Original Message-----
From: asterisk-users-admin at lists.digium.com
[mailto:asterisk-users-admin at lists.digium.com] On Behalf Of Steven
Critchfield
Sent: Tuesday, May 25, 2004 3:26 PM
To: asterisk-users at lists.digium.com
Subject: Re: [Asterisk-Users] "Glare" condition - How well does
asteriskhandle?

On Tue, 2004-05-25 at 13:53, Scott Stingel wrote:
> Hi-
> 
> I have an upcoming application that requires use of PRI channels that 
> are primarily used for high-volume incoming traffic, but that are to 
> be used for outbound calling as well.  Of course, one option is to 
> have dedicated outbound channels reserved, but this is an inefficient 
> use of channel resources.
> 
> Normally PBX's are designed to have the CPE yield to an incoming call 
> if a particular channel is seized by both ends at the same time (a 
> condition known as "glare"), but I'm wondering if anyone has 
> real-world experience with asterisk to say how well this is handled.

While I may be wrong, I don't think "glare" happens on PRI. The
difference being that the call isn't sent over a channel until there had
been communications on the D channel. This means a send and a receive.
"Glare" would happen on a channelized T1 where it is possible for each
end to try and seize the channel at the same time, since there isn't any
out of band communications.
--
Steven Critchfield  <critch at basesys.com>

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