![Yeastar Technology MyPBX U520 Installation Manual Download Page 188](http://html1.mh-extra.com/html/yeastar-technology/mypbx-u520/mypbx-u520_installation-manual_3263657188.webp)
MyPBX U5XX Administrator's Guide
www.yeastar.com
Page171
APPENDIX H 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 H-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
Z
: Any Digit from 1-9
N
: Any Digit from 2-9
Summary of Contents for MyPBX U520
Page 18: ...U5 series Administrator s Guide Version 14 18 0 22 Yeastar Technology Co Ltd ...
Page 150: ...MyPBX U5XX Administrator s Guide www yeastar comPage133 9 Logout Click to log out safely ...
Page 183: ...MyPBX U5XX Administrator s Guide www yeastar comPage166 FigureE 5 Step5 Finish ...
Page 185: ...MyPBX U5XX Administrator s Guide www yeastar comPage168 Figure F 2 Step3 Finish ...
Page 191: ...MyPBX U5XX Administrator s Guide www yeastar comPage174 Figure H 3 ...
Page 204: ...MyPBX U5XX Extension User s Guide Yeastar Technology Co Ltd www yeastar com 7 9 Figure 1 4 ...