RFC 3261 flag options are defined below.

Command Syntax

% set addressContext <name> zone <name> sipTrunkGroup <name> signaling rfc3261ValidateCSeqInBYE <disabled | enabled>
 
% set addressContext <name> zone <name> sipTrunkGroup <name> signaling rfc3261ValidateInvite200OkRetransmissions <disabled | enabled>

Command Parameters

RFC Flags Parameters

ParameterDescription
rfc3261ValidateCSeqInBYE

When this flag is enabled, the SBC sends a 500 (Server Internal Error) response upon receipt of a BYE when CSeq is a lower value than the preceding INVITE request (as per RFC 3261).

  • disabled (default)

  • enabled

rfc3261ValidateInvite
200OkRetransmissions

When this flag is enabled, the SBC starts a timer for 64 * T1 (32 seconds) upon receiving a 200 OK to an INVITE. The SBC does not acknowledge re-transmitted 200 OK to an INVITE after the timer expiry. When this flag is disabled, the SBC continues to acknowledge retransmitted 200 OKs (as per RFC 3261).

  • disabled (default)

  • enabled

 

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