Cisco SPA2102-SF Administration Guide - Page 203

ATA Voice Field Reference PSTN Line page (SPA3102) B Restrict Source IP If Lines 1 and 2 use the same SIP Port value and the Restrict Source IP feature is enabled, the proxy IP address for Lines 1 and 2 is treated as an acceptable IP address for both lines. To enable the Restrict Source IP feature, select yes. Otherwise, select no. If configured, the PAP2T will drop all packets sent to its SIP Ports originated from an untrusted IP address. A source IP address is untrusted if it does not match any of the IP addresses resolved from the configured Proxy (or Outbound Proxy if Use Outbound Proxy is yes). Referor Bye Delay The default is no. Controls when the ATA device sends BYE to terminate stale call legs upon completion of call transfers. Multiple delay settings (Referor, Refer Target, Referee, and Refer-To Target) are configured on this screen. For the Referor Bye Delay, enter the appropriate period of time in seconds. Refer Target Bye Delay The default is 4. For the Refer Target Bye Delay, enter the appropriate period of time in seconds. Referee Bye Delay The default is 0. For the Referee Bye Delay, enter the appropriate period of time in seconds. Refer-To Target Contact The default is 0. To contact the refer-to target, select yes. Otherwise, select no. Sticky 183 The default is no. If this feature is enabled, the IP telephony ignores further 180 SIP responses after receiving the first 183 SIP response for an outbound INVITE. To enable this feature, select yes. Otherwise, select no. The default is no. Cisco Small Business ATA Administration Guide 203