The following SIP trunk group signaling Relay flags are described below:

  • relayNonInviteRequest
  • relayReplacesHeader
  • relayUpdatewithSdp
Note

Use relayNonInviteRequest flag for unregistered users only.

Note

 The SBC supports up to nine call transfers for a call.

Command Syntax

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

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

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

Command Parameters

Relay Flags

ParameterDescription
relayNonInviteRequestEnable this flag to relay non-Invite requests.
  • disabled (default)

  • enabled

relayReplacesHeaderEnable this flag to allow the P-CSCF to relay the Replaces header with the INVITE.
  • disabled (default) – Process INVITE locally.
  • enabled – Translate dialog identifier and relay Replaces header in INVITE.

relayUpdatewithSdp

Enable this flag to relay UPDATE request with Offer immediately after receiving or sending answer in unreliable provisional responses. This flag is applicable only in case of interworking where one side supports reliable response (from where the UPDATE is received) and the other side does not (towards which it needs to be relayed).

  • disabled (default)

  • enabled

 

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