10.13.2 DECT R4
Avaya 3720, 3725, 3740 and 3749 phones connect to the DECT base stations in a DECT R4 system. They then connect to
the IP Office via the IP network.
Avaya 3701 and 3711 phones are also supported but only as GAP compatible devices.
Installing IP500/IP500 V2
Page 368
IP Office 9.0
15-601042 Issue 28c (19 August 2013)