Avaya Cloud Office Persistent gateway support
Avaya Cloud Office (ACO) customers who also have an IP Office, can use the IP Office as a persistent gateway. IP Office acts as a failover PBX for ACO registered J100 Series SIP phones.
IP Office as an ACO persistent gateway is supported on IP Office IP500 V2 system running in Essential Edition, Preferred Edition, or subscription mode.
For more information, see Using Avaya IP Office as an Avaya Cloud Office Persistent Gateway.