User`s guide

VigorIPPBX 3510 Series User’s Guide
114
For Block Unknown Domain – this function can block incoming calls from unrecognized
domain that is not specified in SIP accounts. Such controlling also can be done based on
preconfigured schedules.
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This page allows you to set relational (advanced) settings for IP PBX device.
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To make the IP phone to be registered in IP PBX device successfully, it is necessary for the
users to configure settings in this page.