MyPBX U100&U200 Administrator's Guide
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Page 145
APPENDIX G How to Use DID
Direct inward dialing (DID), also called direct dial-in (DDI) in Europe and
Oceania, is a feature offered by telephone companies for use with their
customers' private branch exchange (PBX) systems. In DID service the
telephone company provides one or more trunk lines to the customer for
connection to the customer's PBX and allocates a range of telephone numbers to
this line (or group of lines) and forwards all calls to such numbers via the trunk.
MyPBX support DID, you can configure DID in inbound route. Related settings:
DID Number, Extension, Destination.
Figure G-1
·
DID Number
Define the expected DID Number if this trunk passes DID on incoming calls.
Leave this field blank to match calls with any or no DID info. Only service
provider, E1 trunks, BRI trunks or SIP trunks need to be configured with this
setting.
You can also use pattern matching to match a range of numbers.The following
patterns may be used:
X
: Any Digit from 0-9
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