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To register to alternate SIP server, use either of the following procedure:

If both of the above configurations are present, the SIP Trunk Group Configuration takes precedence over the IPSP Configuration.

IPSP Configuration

To configure an alternate SIP server using IPSP configuration, perform the following steps:

Configuring Path Check for IP Address or FQDN

This feature requires Pathcheck support using OPTIONS Ping and ARS static blacklisting to detect the reachability of a particular IP/FQDN.

For IP Address

set profiles services pathCheckProfile PATH1 protocol sipOptions sendInterval 60 replyTimeoutCount 1 recoveryCount 1
set addressContext default zone ZONE_AS ipPeer PEER_AS ipAddress 10.54.80.94 ipPort 6274
set addressContext default zone ZONE_AS ipPeer PEER_AS pathCheck profile PATH1 state enabled

For FQDN

set profiles services pathCheckProfile PATH1 protocol sipOptions sendInterval 60 replyTimeoutCount 1 recoveryCount 1
set addressContext default zone ZONE_AS ipPeer PEER_AS1 policy sip fqdn example.com fqdnPort 6274
set addressContext default zone ZONE_AS ipPeer PEER_AS1 pathCheck profile PATH1 hostName abc.example.com hostPort 6274 state enabled

Configuring IP Signaling Profile

set addressContext default zone ZONE_AS sipTrunkGroup TG_SIPART_AS policy signaling ipSignalingProfile DEFAULT_SIP

Configuring the Internal Expires Timer

set addressContext default zone ZONE_AS sipTrunkGroup TG_SIPART_AS signaling registration insideExpiresMinimum 3600

Configuring Registrar Recovery flags in IP Signaling Profile

set profiles signaling ipSignalingProfile DEFAULT_SIP commonIpAttributes registrarRecovery registerToAlternateOnPrimaryDown enable revertToPrimaryOnRecovery enable deRegisterAlternateOnPrimaryRecovery enable overrideInternalExpiresTimer enable
  • The registerToAlternateOnPrimaryDown flag must be enabled to view overrideInternalExpiresTimer and revertToPrimaryOnRecovery flags.
  • The revertToPrimaryOnRecovery flag must be enabled to view deRegisterAlternateOnPrimaryRecovery flag.
  • The IPSP flags can be configured only on Egress Trunk Group.

SIP Trunk Group Configuration

The CLI request queryPsxOnNextRefreshRegister command is used to force PSX query on subsequent refresh REGISTER. This enables new routing information configured in PSX to reflect in SBC when registrations are active for a long period of time.

Any new registrations that are received after the command is executed are not affected by this command.

request addressContext default zone ZONE_AS sipTrunkGroup TG_SIPART_AS cmds queryPsxOnNextRefreshRegister newRegistrarIndex 1
 
request addressContext default zone ZONE_AS sipTrunkGroup TG_SIPART_AS cmds queryPsxOnNextRefreshRegister newRegistrarIndex 1 overRideInternalExpires enable registrarIpAddress 10.54.80.94
 
request addressContext default zone ZONE_AS sipTrunkGroup TG_SIPART_AS cmds queryPsxOnNextRefreshRegister newRegistrarIndex 1 overRideInternalExpires enable registrarFqdn abc.example.com
  • The request queryPsxOnNextRefreshRegister command must be executed only on the Ingress Trunk Group.
  • The request queryPsxOnNextRefreshRegister command is applied to all the refresh REGISTERs on all active registrations, which are currently handled by SBC.
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