Welltech SIPPBX 6200 V.3.1.1 - Manual (Page 57)

Welltech Technology Co., Ltd.
SIPPBX 6200S, 6200GS, 6200N Release 3.1.1
User Guide
- 57 -
Parameter Description:
• IP Address: the internet public IP address on NAT Server. The subscriber has
private IP address under this internet public IP address.
• Sub-mask: network subnet mask address.
DNIS Screening Group
DNIS screen group can be used to limit the called prefix. Firstly, you need to
create the Screening Group and assigned it for the office as the general
screening filter.
Notes: It is valid only when Toll Restriction is disabled .
Start Path: Service > DNIS Screening Group
Figure 5.7-1
Detail:
Figure 5.7-2
Parameter Description:
• Screening Prefix: Called number prefix.
• Screening Type: Allow or Disallow.
When all of detail records are set to Allow (prefix matched), only on-list DNIS
numbers can go through. When all TEL are set to Disallow, only on-list DNIS
numbers will be screened (stopped). Meanwhile, “disallow” has higher priority
than “allow”.