System information

WS620 IPPhone
www.escene.hk
Escene Communication
Figure 2.2 Footstand of WS620
５） If you want to connect an ESM (Expansion module), you could connect it (any interface on the
ESM) to the EXT interface on the phone with a RJ-45 cable (a straight-through cable), and the
second ESM can be connected to the first one too. It supports 6 ESMs.