Supplementary Services

The SBC and CRP supplementary services parameters are described in the table below.

SBC and CRP Supplementary Services Parameters

Parameter

Description

Emergency Call Preemption Parameters

For more information on SBC emergency call preemption, Configuring Call Preemption for SBC Emergency Calls.

'SBC Preemption Mode'

configure voip > sbc settings > sbc-preemption-mode

[SBCPreemptionMode]

Enables SBC emergency call preemption.

■

[0] Disable (default)

■

[1] Enable

'Emergency Message Condition'

configure voip > sbc settings > sbc-emerg-condition

[SBCEmergencyCondition]

Defines the index of the Message Condition rule in the Message Conditions table that is used to identify emergency calls.

Note: The device applies the rule only after call classification (but before inbound manipulation).

'Emergency RTP DiffServ'

configure voip > sbc settings > sbc-emerg-rtp-diffserv

[SBCEmergencyRTPDiffServ]

Defines DiffServ bits sent in the RTP for SBC emergency calls.

The valid value is 0 to 63. The default is 46.

'Emergency Signaling DiffServ'

configure voip > sbc settings > sbc-emerg-sig-diffserv

[SBCEmergencySignalingDiffServ]

Defines DiffServ bits sent in SIP signaling messages for SBC emergency calls. This is included in the SIP Resource-Priority header.

The valid value is 0 to 63. The default is 40.