Besides the gloCOM SIP Proxy address option, which can be found under Settings → Tenants → Master Tenant and is used to define the public IP address or domain of the gloCOM SIP Proxy, there is another option called gloCOM SIP Proxy (Failover). This option serves as a failover in case the primary SIP Proxy defined in the gloCOM SIP Proxy field becomes unavailable.
For example, if an SBC is used and the primary SBC goes down, the failover server defined in this field will be used. gloCOM apps will register with the failover server, and applications will continue to operate normally.