Welltech SIPPBX 6200 V.3.1.0 - Manual (Page 209)

Welltech Computer Co., Ltd.
SIPPBX 6200S/GS Release 3.1.0 User Guide - 209 -
For Setup -> PBX Setup, please select the “TCP WELLTECH SIPPBX 6200”
and apply it. After apply, please restart CAS 2000.
Step 3: After CAS 2000 restarted, Click “Setup -> Option” to
setup the SIPPBX connection information.