The UA has the responsibility of sending a new REGISTER at the intervals specified for registration expiry. If not, the location will be purged. g-) ----- Original Message ----- From: rpagquil@philonline.com To: serusers@lists.iptel.org Sent: Thursday, November 10, 2005 10:42 AM Subject: [Serusers] Expire for User agent question

Hi, How does SER knows that a particular User Agent is still active? Isn't every entries in the location table has expiration, and it counts down until the expires reaches zero, meaning the contact must be removed from the location table. Does SER responsible in checking the user agent is still active or the user agent must be the one to tell SER that he still active so that it will not be removed from the contact in the location database?

Thanks, Ryan

Ryan Pagquil Infodyne Inc. (www.philonline.com) Tel. (632)-6870715

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