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NOTE: This field is not applicable to the
A Call Admission Profile provides SIP level call admission control by regulating call attempts per second, and the rate of new invite/non-invite sessions. Once the SBC limits are met, SIP will no longer accept/issue new invite or non-invite sessions (except 911 calls). This feature protects the SBC from overload conditions (an overload condition is detected if the average rate of invite and non-invite sessions exceeds the pre-determined limit or the CPU threshold is exceeded). It also prevents internal/external DOS attacks in an otherwise normal network using overload detection and resource leaks/malfunction detection. When rejecting calls or sessions on account of admission-control, SBC sends "480 Temporarily Unavailable" response to the peers. Options: Enable (default; enables SIP level call admission control) or Disable (disables SIP level call admission control. |
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When ICE Support is set to Enabled and ICE Mode is configured as Full, Stun Server configuration is required. This field specifies the STUN Server Destination, which is used to gather ICE candidates when ICE Mode is configured as Full. Only servers whose protocol is configured as UDP are available in the STUN Server Destination list box.
This server is defined in a SIP Server Table.
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