> -----Original Message----- > From: [EMAIL PROTECTED] [mailto:asterisk-users- > [EMAIL PROTECTED] On Behalf Of BJ Weschke > Sent: Friday, January 27, 2006 6:18 PM > To: Asterisk Users Mailing List - Non-Commercial Discussion > Subject: Re: [Asterisk-Users] sip qualify=yes interval > > On 1/27/06, Damon Estep <[EMAIL PROTECTED]> wrote: > > In an earlier thread Andrew Kohlsmith enlightened me on the use of > > qualify in sip.conf to deal with a peer that is down. > > > > Since then I have been searching for information on how the behavior of > > qualify can be tuned. > > > > The wiki is vague on this; > > > > " Syntax: > > > > qualify=xxx|no|yes > > > > where XXX is the number of milliseconds used. If yes the default timeout > > is used, 2 seconds. > > > > If you turn on qualify in the configuration of a SIP device in sip.conf, > > Asterisk will send a SIP OPTIONS command regularly to check that the > > device is still online. If the device does not answer within the > > configured (or default) period (in ms) Asterisk considers the device > > off-line for future calls. " > > > > So; > > qualify=1000|yes > > means query for SIP OPTIONS, then take then unregister the peer if no > > response in 1000ms. > > > > But, how do you set/determine the frequency at which a peer is queried? > > Does this go on indefinitely after a peer fails to respond to make sure > > the peer is re-registered when available again? Can the interval be set > > on a per peer basis? > > > > Any documentation on this that you can point me to? > > It should actually be qualify=1000 if you'd like for the peer to be > made unavailable when we don't get a response to SIP OPTIONs within > 1000ms (1 second).
Figured that out, thanks. > > If the host is reachable, the next SIP OPTION attempt will not come > until 60 seconds later. If the host isn't reachable, it will proceed > to schedule SIP OPTION attempts every 10 seconds. > > These are defined constants in chan_sip.c Seems silly to make these constant, I can think of many situations where you might want to change them (heavily loaded system, many, many peers), but I assume the sip options exchange is only a few packets... easy enough to change the constants in chan_sip.c I suppose. > Thanks for the info! _______________________________________________ --Bandwidth and Colocation provided by Easynews.com -- Asterisk-Users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
