Why asterisk server updates the status of clients after one minute

Question

Can any body please tell me that when i unregistered my soft phone (xlite) client, i execute "sip show peers" command on asterisk server then why it shows its status (OK) . When i execute same command after a minute then it shows (UNKNOWN) status. It actually updates the status after a minute ? why

Answer 1

While creating sip account in sip.conf add following attributes.

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qualify=yes
qualifyfreq=3 (time in seconds in which sip status will be updated)

http://www.voip-info.org/wiki/view/Asterisk%20sip%20qualify

Answer 2

You xlite work not correctly,and not do any unregister action. Status become unknown when xlite not do re-registration in next re-register interval.

You can decrease time by moving out from xlite(very buggy software) to other softphone or by decreasing registration time to 20-30 sec.