PSTN Gateway Failover Parameters

The following table includes parameters to configure phones to fail over to an alternate PSTN gateway in the event of an outage or if the phones can’t reach the Skype for Business server.

Table 1. PSTN Gateway Failover Parameters
Template Parameter Pemitted Values Change Causes Restart or Reboot
features.cfg feature.sfbPstnFailover.enabled

Enable or disable for phones to fail over to a PSTN gateway during an outage.

0 (default)

1

Yes
site.cfg reg.x.server.y.address If this parameter is set, it takes precedence even if the DHCP server is available.

Null (default) - SIP server does not accepts registrations.

IP address or hostname - SIP server that accepts registrations.

This parameter is only applicable during a failover to PSTN gateway in Skype for Business deployments.

No
reg-basic.cfg reg.x.server.y.pstnServerAuth.userId Specify the user identification for the PSTN gateway.

Null (default)

String (maximum of 255 characters)

No
reg-basic.cfg reg.x.server.y.pstnServerAuth.password Specify the PSTN user’s password.

Null (default)

String (maximum of 255 characters)

No