Linksys SPA921 Cisco Small Business IP Phone SPA9X1 Administration Guide - Page 117
Reg Retry Long Random Delay
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SIP Tab Chapter 5 Linksys IP Phone Field Reference Field Description Reg Retry Random Delay Random delay range (in seconds) to add to when retrying REGISTER after a failure. This feature was added in Release 5.1. Defaults to blank, which disables this feature. Reg Retry Long Random Delay Random delay range (in seconds) to add to when retrying REGSITER after a failure. This feature was added in Release 5.1. Defaults to blank, which disables this feature. Reg Retry Intvl Cap The maximum value to cap the exponential back-off retry delay (which starts at and doubles on every REGISTER retry after a failure). In other words, the retry interval is always at seconds after a failure. If this feature is enabled, is added on top of the exponential back-off adjusted delay value. This feature was added in Release 5.1. Defaults to blank, which disables the exponential back-off feature. Sub Min Expires This value sets the lower limit of the REGISTER expires value returned from the Proxy server. Sub Max Expires This value sets the upper limit of the REGISTER min-expires value returned from the Proxy server in the Min-Expires header. Defaults to 7200. Sub Retry Intvl This value (in seconds) determines the retry interval when the last Subscribe request fails. Defaults to 10. 5-12 Linksys IP Phone Administrator Guide Firmware Version 5.1