This section helps you to understand the parameters associated with overlap addressing support. On the SBC main screen, go to Configuration > System Provisioning > Category: Trunk Provisioning > Trunk Group > SIP Trunk Group > SIP Trunk Advanced > SIP Trunk - Services - Advanced > Overlap Addressing. The Overlap Addressing window is displayed. You can check the Overlap Addressing for each Address Context, Zone, and SIP Trunk Group created, or all Address Contexts, Zones, and SIP Trunk Groups created. Use the drop-down box to select the desired Address Context, Zone and Sip Trunk Group. The Edit Overlap Addressing window is displayed. SIP Trunk Advanced - H323 Trunk - Services - Advanced - Overlap Addressing Overlap Addressing Parameters Parameter Description Overlap State Specifies whether to support or not support overlap addressing. Min Digits For Query Timer2 Timer3 Specifies the maximum time (in seconds) between receiving a 484 Address Incomplete message (if there are no outstanding INVITE transactions) and receiving fresh address information. The value ranges from 4 to 64, and the default value is 4. Receive Use this parameter to specify the Incoming overlap type. Send Use this parameter to specify the Outgoing overlap type. Timer1 Specifies the maximum time (in seconds) between collection of digits. The value ranges from 5 to 15, and the default value is 10. Make the required changes and click Save.To View and Edit Overlap Addressing
Specifies the minimum number of digits that need to be received before attempting to route the call. The value ranges from 0 to 30 and the default value is 0. Specifies the maximum time (in seconds) between sending an INVITE and receiving a backward message. The value ranges from 0 to 14 and the default value is 0.