Avaya Cloud Office customers who also have IP Office can use IP Office as a persistent gateway. This setup enables some Avaya Cloud Office phones to use IP Office for telephone calls if they cannot connect to Avaya Cloud Office.

Using an Avaya Cloud Office persistent gateway is a chargeable feature. Persistence also consumes an IP Office endpoint license or user subscription for each phone.

IP Office as a persistent gateway is supported on IP Office IP500 V2 systems running in Essential Edition, Preferred Edition, or subscription mode.

IP Office IP500 V2 acts as a failover PBX for J100 Series SIP phones registered on Avaya Cloud Office.