Linksys WIP310 SPA500 Series and WIP310 IP Phone Administration Guide - Page 108

Configuring SIP, SPCP, and NAT Configuring SIP 4 Parameter Referror Bye Delay Refer-To Target Contact Referee Bye Delay Description Controls when the Cisco IP phone sends BYE to terminate stale call legs upon completion of call transfers. Multiple delay settings (Referror, Refer Target, Referee, and Refer-To Target) are configured on this screen. For the Referror Bye Delay, enter the appropriate period of time in seconds. Defaults to 4. To contact the refer-to target, select yes. Otherwise, select no. Default: no. For the Referee Bye Delay, enter the appropriate period of time in seconds. Defaults to 0. Cisco SPA 500 Series and WIP310 IP Phone Administration Guide 97